$data <<EOF
08/1997	22.50	22.50	22.50	22.50	0.00%
09/1997	22.50	22.50	20.84	20.84	-7.38%
10/1997	20.84	20.84	20.84	20.84	0.00%
11/1997	20.84	22.37	20.84	22.37	7.34%
12/1997	22.37	22.37	22.37	22.37	0.00%
01/1998	22.37	25.82	22.37	25.82	15.42%
02/1998	25.82	26.46	25.69	25.69	0.50%
03/1998	25.69	25.69	25.69	25.69	0.00%
04/1998	25.69	26.84	25.69	26.84	4.48%
05/1998	26.84	27.87	26.59	27.48	2.38%
06/1998	27.48	27.48	27.48	27.48	0.00%
07/1998	27.48	27.48	27.48	27.48	0.00%
08/1998	27.48	27.48	27.48	27.48	0.00%
09/1998	27.48	27.48	27.48	27.48	0.00%
10/1998	27.48	28.38	27.48	28.38	3.28%
11/1998	28.38	39.37	28.38	39.37	38.72%
12/1998	39.37	39.37	35.15	37.07	-5.84%
01/1999	37.07	41.25	37.07	41.25	11.28%
02/1999	41.25	41.25	38.25	38.25	-7.27%
03/1999	38.25	40.25	38.25	40.25	5.23%
04/1999	40.25	40.25	36.50	37.50	-6.83%
05/1999	37.50	40.00	36.75	40.00	6.67%
06/1999	40.00	40.50	35.50	40.50	1.25%
07/1999	40.50	42.00	37.50	37.50	-7.41%
08/1999	37.50	41.80	35.00	40.00	6.67%
09/1999	40.00	41.00	36.90	39.00	-2.50%
10/1999	39.00	43.00	39.00	42.00	7.69%
11/1999	42.00	46.00	41.00	41.30	-1.67%
12/1999	41.30	42.50	38.40	39.70	-3.87%
01/2000	39.70	41.40	35.50	39.00	-1.76%
02/2000	39.00	42.00	37.90	39.50	1.28%
03/2000	39.50	41.00	38.50	38.50	-2.53%
04/2000	38.50	44.00	38.50	41.50	7.79%
05/2000	41.50	47.00	41.50	47.00	13.25%
06/2000	47.00	51.00	43.00	49.00	4.26%
07/2000	49.00	58.00	48.50	58.00	18.37%
08/2000	58.00	58.00	53.50	56.00	-3.45%
09/2000	56.00	61.00	54.00	58.00	3.57%
10/2000	58.00	62.00	58.00	61.60	6.21%
11/2000	61.60	69.00	61.50	69.00	12.01%
12/2000	69.00	69.00	60.00	69.00	0.00%
01/2001	69.00	69.50	56.00	61.00	-11.59%
02/2001	61.00	64.00	58.50	58.50	-4.10%
03/2001	58.50	63.00	53.20	63.00	7.69%
04/2001	63.00	67.50	61.00	67.50	7.14%
05/2001	67.50	73.00	66.00	72.50	7.41%
06/2001	72.50	77.20	70.50	77.20	6.48%
07/2001	77.20	77.20	67.00	71.00	-8.03%
08/2001	71.00	74.30	66.50	72.00	1.41%
09/2001	72.00	76.00	68.50	71.60	0.56%
10/2001	71.60	78.50	69.50	73.00	1.96%
11/2001	73.00	77.70	73.00	76.70	5.07%
12/2001	76.70	85.90	73.50	85.20	11.08%
01/2002	85.20	85.20	76.90	77.50	-9.04%
02/2002	77.50	77.50	70.20	75.70	-2.32%
03/2002	75.70	75.70	70.50	73.50	-2.91%
04/2002	73.50	73.50	68.20	70.80	-3.67%
05/2002	70.80	71.10	65.50	65.50	-7.49%
06/2002	65.50	65.50	54.50	61.30	-6.41%
07/2002	61.30	63.00	52.00	60.00	-2.12%
08/2002	60.00	65.00	58.00	61.00	1.67%
09/2002	61.00	61.00	52.50	57.00	-6.56%
10/2002	57.00	63.00	56.50	62.00	8.77%
11/2002	62.00	62.00	56.00	59.10	-4.68%
12/2002	59.10	59.10	55.00	56.70	-4.06%
01/2003	56.70	59.00	45.50	48.50	-14.46%
02/2003	48.50	49.50	41.50	49.50	2.06%
03/2003	49.50	52.00	42.10	46.00	-7.07%
04/2003	46.00	54.50	46.00	53.00	15.22%
05/2003	53.00	55.00	50.50	54.00	1.89%
06/2003	54.00	57.00	50.80	50.80	-5.93%
07/2003	50.80	53.50	50.00	50.00	-1.57%
08/2003	50.00	52.00	47.70	52.00	4.00%
09/2003	52.00	56.20	52.00	52.00	0.00%
10/2003	52.00	54.30	51.70	53.20	2.31%
11/2003	53.20	57.00	53.20	55.90	5.08%
12/2003	55.90	59.00	55.40	59.00	5.55%
01/2004	59.00	61.80	54.70	57.00	-3.39%
02/2004	57.00	57.60	54.50	54.70	-4.04%
03/2004	54.70	56.90	53.00	53.30	-2.56%
04/2004	53.30	56.50	50.15	53.00	0.56%
05/2004	53.00	54.80	52.00	53.80	1.51%
06/2004	53.80	54.50	52.20	52.25	-2.88%
07/2004	52.25	54.90	52.00	54.80	4.88%
08/2004	54.80	59.30	54.50	58.30	6.39%
09/2004	58.30	59.30	56.05	58.20	0.17%
10/2004	58.20	60.10	54.90	57.50	-1.20%
11/2004	57.50	60.10	56.60	56.60	-1.57%
12/2004	56.60	58.90	55.90	58.90	4.06%
01/2005	58.90	59.50	56.60	57.10	-3.06%
02/2005	57.10	60.69	56.65	60.69	6.29%
03/2005	60.69	66.90	60.69	65.00	7.10%
04/2005	65.00	69.10	64.80	68.12	4.80%
05/2005	68.12	73.10	68.10	73.10	7.31%
06/2005	73.10	73.80	67.10	68.00	-6.98%
07/2005	68.00	71.40	68.00	71.33	4.90%
08/2005	71.33	72.40	68.72	68.72	-3.66%
09/2005	68.72	68.72	65.60	68.54	0.26%
10/2005	68.54	70.20	65.30	66.53	-2.93%
11/2005	66.53	69.75	66.00	68.51	2.98%
12/2005	68.51	75.84	68.51	74.14	8.22%
01/2006	74.14	78.80	73.00	75.50	1.83%
02/2006	75.50	76.27	71.57	71.68	-5.06%
03/2006	71.68	79.00	70.03	79.00	10.21%
04/2006	79.00	79.00	73.50	74.85	-5.25%
05/2006	74.85	76.25	71.95	73.56	-1.72%
06/2006	73.56	76.30	70.61	76.30	3.72%
07/2006	76.30	78.54	74.55	74.94	-1.78%
08/2006	74.94	74.94	67.85	70.20	-6.33%
09/2006	70.20	70.73	67.50	70.35	0.21%
10/2006	70.35	70.78	66.60	66.60	-5.33%
11/2006	66.60	67.45	64.60	66.45	0.23%
12/2006	66.45	70.49	65.65	70.25	5.72%
01/2007	70.25	71.02	67.40	67.40	-4.06%
02/2007	67.40	68.11	64.15	64.15	-4.82%
03/2007	64.15	65.49	63.05	65.05	1.40%
04/2007	65.05	68.19	64.64	67.38	3.58%
05/2007	67.38	71.47	67.38	71.47	6.07%
06/2007	71.47	71.47	59.85	59.85	-16.26%
07/2007	59.85	62.45	59.85	61.53	2.81%
08/2007	61.53	61.53	57.00	59.89	-2.67%
09/2007	59.89	62.05	59.05	59.05	-1.40%
10/2007	59.05	63.63	58.65	60.75	2.88%
11/2007	60.75	64.76	58.73	64.76	6.60%
12/2007	64.76	65.55	63.00	63.30	-2.25%
01/2008	63.30	65.80	53.96	54.50	-13.90%
02/2008	54.50	54.50	48.71	48.71	-10.62%
03/2008	48.71	49.19	44.69	47.34	-2.81%
04/2008	47.34	50.59	47.34	50.09	5.81%
05/2008	50.09	51.09	46.49	47.89	-4.39%
06/2008	47.89	47.89	41.49	42.47	-11.32%
07/2008	42.47	47.18	41.42	45.23	6.50%
08/2008	45.23	49.96	45.23	48.80	7.89%
09/2008	48.80	50.55	45.10	46.21	-5.31%
10/2008	46.21	49.70	37.64	49.27	6.62%
11/2008	49.27	49.27	39.40	42.44	-13.86%
12/2008	42.44	47.06	42.44	44.92	5.84%
01/2009	44.92	49.17	43.63	44.23	-1.54%
02/2009	44.23	47.00	40.83	40.83	-7.69%
03/2009	40.83	42.40	39.34	42.00	2.87%
04/2009	42.00	43.60	40.31	43.60	3.81%
05/2009	43.60	45.08	43.34	44.85	2.87%
06/2009	44.85	48.43	40.75	41.59	-7.27%
07/2009	41.59	47.18	41.36	45.97	10.53%
08/2009	45.97	48.33	44.83	47.61	3.57%
09/2009	47.61	51.22	46.42	49.80	4.60%
10/2009	49.80	53.63	49.65	50.07	0.54%
11/2009	50.07	51.98	48.94	50.66	1.18%
12/2009	50.66	56.13	50.66	55.54	9.63%
01/2010	55.54	57.69	52.62	53.31	-4.02%
02/2010	53.31	54.60	51.50	53.88	1.07%
03/2010	53.88	57.39	53.88	55.05	2.17%
04/2010	55.05	55.59	51.60	51.60	-6.27%
05/2010	51.60	51.93	46.35	49.33	-4.40%
06/2010	49.33	51.54	47.78	49.51	0.36%
07/2010	49.51	49.51	44.66	44.66	-9.80%
08/2010	44.66	46.90	44.65	45.50	1.88%
09/2010	45.50	50.83	45.50	49.27	8.29%
10/2010	49.27	50.56	47.93	50.30	2.09%
11/2010	50.30	51.23	47.05	47.18	-6.20%
12/2010	47.18	49.79	47.18	48.57	2.95%
01/2011	48.57	51.80	48.57	50.03	3.01%
02/2011	50.03	51.22	48.95	49.81	0.44%
03/2011	49.81	51.75	46.04	49.79	0.04%
04/2011	49.79	53.29	49.79	53.25	6.95%
05/2011	53.25	56.40	53.04	54.91	3.12%
06/2011	54.91	55.29	51.63	55.29	0.69%
07/2011	55.29	56.01	53.71	54.03	-2.28%
08/2011	54.03	54.03	44.42	51.00	-5.61%
09/2011	51.00	51.14	46.48	49.11	-3.71%
10/2011	49.11	52.69	48.15	51.80	5.48%
11/2011	51.80	52.03	47.51	52.03	0.44%
12/2011	52.03	56.62	51.53	56.62	8.82%
01/2012	56.62	57.20	55.27	56.50	0.21%
02/2012	56.50	56.83	55.45	55.45	-1.86%
03/2012	55.45	59.34	55.45	58.09	4.76%
04/2012	58.09	59.00	55.44	57.94	0.26%
05/2012	57.94	58.68	53.80	54.76	-5.49%
06/2012	54.76	59.34	53.48	59.34	8.36%
07/2012	59.34	66.00	59.34	66.00	11.22%
08/2012	66.00	68.46	64.58	65.29	-1.08%
09/2012	65.29	69.07	64.45	66.81	2.33%
10/2012	66.81	69.45	66.08	67.80	1.48%
11/2012	67.80	69.75	66.96	68.41	0.90%
12/2012	68.41	72.12	68.41	71.22	4.11%
01/2013	71.22	74.22	71.22	71.86	0.90%
02/2013	71.86	74.01	66.89	72.70	1.17%
03/2013	72.70	79.50	71.90	79.50	9.35%
04/2013	79.50	84.59	77.40	82.58	3.87%
05/2013	82.58	86.50	82.51	82.51	0.08%
06/2013	82.51	82.64	75.93	79.44	-3.72%
07/2013	79.44	81.00	77.81	80.31	1.10%
08/2013	80.31	80.31	72.28	72.28	-10.00%
09/2013	72.28	75.84	71.63	74.99	3.75%
10/2013	74.99	78.78	72.44	78.78	5.05%
11/2013	78.78	80.14	77.80	78.10	0.86%
12/2013	78.10	78.10	72.36	75.96	-2.74%
01/2014	75.96	76.63	71.23	72.87	-4.07%
02/2014	72.87	75.34	69.63	75.22	3.22%
03/2014	75.22	76.06	71.30	76.06	1.12%
04/2014	76.06	77.89	73.96	77.89	2.41%
05/2014	77.89	79.00	76.72	78.31	0.54%
06/2014	78.31	80.29	77.50	77.73	0.74%
07/2014	77.73	78.35	75.50	78.25	0.67%
08/2014	78.25	83.42	76.72	83.42	6.61%
09/2014	83.42	89.13	83.42	89.13	6.84%
10/2014	89.13	89.15	71.39	73.62	-17.40%
11/2014	73.62	77.42	72.26	77.42	5.16%
12/2014	77.42	78.15	71.49	75.65	-2.29%
01/2015	75.65	83.40	73.60	81.85	8.20%
02/2015	81.85	88.77	81.25	86.93	6.21%
03/2015	86.93	94.00	85.60	92.10	5.95%
04/2015	92.10	99.00	90.70	90.70	-1.52%
05/2015	90.70	93.60	87.93	89.37	-1.47%
06/2015	89.37	93.48	85.80	90.01	0.72%
07/2015	90.01	98.99	86.00	98.15	9.04%
08/2015	98.15	100.75	85.02	87.83	-10.51%
09/2015	87.83	89.88	83.49	85.84	-2.27%
10/2015	85.84	93.81	83.95	91.71	6.84%
11/2015	91.71	93.54	80.34	84.09	-8.31%
12/2015	84.09	84.09	75.50	80.12	-4.72%
01/2016	80.12	80.12	70.17	76.08	-5.04%
02/2016	76.08	76.60	67.71	72.43	-4.80%
03/2016	72.43	75.14	69.31	70.83	-2.21%
04/2016	70.83	78.57	70.14	71.89	1.50%
05/2016	71.89	73.99	69.09	73.55	2.31%
06/2016	73.55	75.67	67.15	75.67	2.88%
07/2016	75.67	76.85	73.89	76.17	0.66%
08/2016	76.17	76.17	68.76	68.99	-9.43%
09/2016	68.99	71.60	67.40	67.45	-2.23%
10/2016	67.45	71.30	67.45	70.80	4.97%
11/2016	70.80	77.81	70.77	76.60	8.19%
12/2016	76.60	77.27	73.72	76.37	0.30%
01/2017	76.37	78.34	73.83	74.81	-2.04%
02/2017	74.81	82.03	74.81	81.60	9.08%
03/2017	81.60	84.53	81.44	84.46	3.50%
04/2017	84.46	86.23	82.48	86.23	2.10%
05/2017	86.23	92.98	86.23	87.94	1.98%
06/2017	87.94	89.50	83.95	84.80	-3.57%
07/2017	84.80	85.82	80.47	80.47	-5.11%
08/2017	80.47	82.66	79.50	81.92	1.80%
09/2017	81.92	84.56	81.23	83.62	2.08%
10/2017	83.62	86.16	79.78	81.73	-2.26%
11/2017	81.73	81.73	75.38	77.21	-5.53%
12/2017	77.21	77.21	72.00	72.00	-6.75%
01/2018	72.00	74.60	70.83	70.97	-1.43%
02/2018	70.97	70.97	63.57	65.23	-8.09%
03/2018	65.23	66.52	63.10	65.00	0.35%
04/2018	65.00	66.75	64.40	65.65	1.00%
05/2018	65.65	66.33	63.50	65.80	0.23%
06/2018	65.80	69.30	65.51	69.30	5.32%
07/2018	69.30	74.41	68.76	74.04	6.84%
08/2018	74.04	75.23	71.59	73.90	0.19%
09/2018	73.90	76.86	72.35	76.86	4.01%
10/2018	76.86	79.01	73.48	79.01	2.80%
11/2018	79.01	80.30	77.50	80.00	1.25%
12/2018	80.00	80.07	73.23	75.14	-6.08%
01/2019	75.14	75.76	72.30	75.76	0.83%
02/2019	75.76	76.55	72.50	73.48	-3.01%
03/2019	73.48	80.01	73.48	79.15	7.72%
04/2019	79.15	79.19	72.56	77.65	-1.90%
05/2019	77.65	77.65	72.31	72.31	-6.88%
06/2019	72.31	78.53	72.31	75.92	4.99%
07/2019	75.92	78.55	73.29	75.50	0.55%
08/2019	75.50	78.19	72.30	78.19	3.56%
09/2019	78.19	85.00	78.11	84.82	8.48%
10/2019	84.82	85.00	81.00	83.03	-2.11%
11/2019	83.03	85.06	82.06	84.66	1.96%
12/2019	84.66	90.83	81.97	90.31	6.67%
01/2020	90.31	93.14	86.96	86.96	-3.71%
02/2020	86.96	93.89	83.99	83.99	-3.42%
03/2020	83.99	90.02	72.70	80.40	-4.27%
04/2020	80.40	94.07	78.72	89.25	11.01%
05/2020	89.25	92.60	86.08	87.25	-2.24%
06/2020	87.25	93.51	87.25	90.63	3.87%
07/2020	90.63	94.21	88.10	88.75	-2.07%
08/2020	88.75	90.42	84.70	84.70	-4.56%
09/2020	84.70	88.46	83.37	85.71	1.19%
10/2020	85.71	87.70	77.00	77.00	-10.16%
11/2020	77.00	87.14	77.00	84.65	9.94%
12/2020	84.65	84.65	77.00	79.25	-6.38%
01/2021	79.25	82.85	77.37	77.37	-2.37%
02/2021	77.37	80.35	75.80	75.85	-1.96%
03/2021	75.85	84.52	75.32	84.10	10.88%
04/2021	84.10	87.90	83.70	87.90	4.52%
05/2021	87.90	88.47	83.88	87.75	0.17%
06/2021	87.75	89.07	84.94	88.53	0.89%
07/2021	88.53	88.78	85.95	86.99	-1.74%
08/2021	86.99	90.67	85.00	87.77	0.90%
09/2021	87.77	88.20	81.37	83.15	-5.26%
10/2021	83.15	86.23	82.65	86.23	3.70%
11/2021	86.23	90.68	84.28	84.28	-2.26%
12/2021	84.28	89.45	83.00	89.45	6.13%
01/2022	89.45	94.72	87.47	92.90	3.86%
02/2022	92.90	94.25	90.20	93.10	0.22%
03/2022	93.10	96.03	88.42	92.52	0.62%
04/2022	92.52	105.92	92.52	100.40	8.52%
05/2022	100.40	104.00	96.50	99.28	-1.12%
06/2022	99.28	100.80	93.50	96.40	-2.90%
07/2022	96.40	100.42	96.40	97.70	1.35%
08/2022	97.70	97.70	80.52	82.30	-15.76%
09/2022	82.30	82.30	77.20	78.87	-4.17%
10/2022	78.87	87.48	78.73	87.48	10.92%
11/2022	87.48	88.45	82.34	85.59	-2.16%
12/2022	85.59	93.20	85.25	90.59	5.84%
01/2023	90.59	92.50	89.05	90.06	0.59%
02/2023	90.06	90.76	85.60	89.00	-1.18%
03/2023	89.00	100.94	88.00	99.79	12.12%
04/2023	99.79	103.88	97.00	97.00	-2.80%
05/2023	97.00	101.50	94.46	95.93	-1.10%
06/2023	95.93	99.01	93.52	97.83	1.98%
07/2023	97.83	98.62	93.31	96.92	0.93%
08/2023	96.92	100.00	92.73	99.66	2.83%
09/2023	99.66	103.62	97.97	101.56	1.91%
10/2023	101.56	104.06	82.14	86.00	-15.32%
11/2023	86.00	88.56	83.54	85.13	-1.01%
12/2023	85.13	89.83	84.53	89.83	5.52%
01/2024	89.83	95.96	89.83	93.50	4.09%
02/2024	93.50	93.50	85.19	88.53	-5.32%
03/2024	88.53	91.95	86.90	91.43	3.28%
04/2024	91.43	92.92	85.75	92.92	1.63%
05/2024	92.92	94.22	88.00	89.43	-3.76%
06/2024	89.43	93.05	86.70	89.80	0.41%
07/2024	89.80	96.72	89.80	95.60	6.46%
08/2024	95.60	101.52	92.49	101.50	6.17%
09/2024	101.50	105.92	101.10	103.24	1.71%
10/2024	103.24	103.24	94.01	97.12	-5.93%
11/2024	97.12	98.63	90.54	91.84	-5.44%
12/2024	91.84	93.80	87.99	93.59	1.91%
01/2025	93.59	104.76	93.42	104.76	11.94%
02/2025	104.76	104.76	102.42	104.62	0.13%
03/2025	104.62	109.76	101.40	101.46	-3.02%
04/2025	101.46	102.30	87.05	96.47	-4.92%
05/2025	96.47	97.90	87.00	87.00	-9.82%
06/2025	87.00	89.10	82.20	82.20	-5.52%
07/2025	82.20	85.87	80.25	80.25	-2.37%
08/2025	80.25	87.44	80.25	84.89	5.78%
09/2025	84.89	86.17	77.65	80.00	-5.76%
10/2025	80.00	88.70	80.00	87.39	9.24%
11/2025	87.39	90.27	85.05	85.90	-1.71%
12/2025	85.90	86.60	80.60	83.02	-3.35%
EOF

set term pdf size 22,13
set term pdf font "sans,20"
set output "Sanofi_stock_price.pdf"
set grid
set key top left
set xdata time
set timefmt "%m/%Y"
set format x "%b %Y"
set xtics rotate by -90 
set xtics 365.25*24*60*60/1	# 1 tics per year

wd = 15.25*24*60*60	# 15.25 days box width
set style fill transparent solid 0.8
plot $data using 1:(($3+$4)/2):(wd):(($4-$3)/2) with boxxyerror lw 1 lc 3 title "Sanofi [FR0000120578] "