Table 1.

Characteristics of scientific production.

Year	Articles	Authors	Countries	Institutions	Citations	Journals	Citations per article	Average number of authors
1996	9	10	9	9	51	8	5.67	1.11
1997	5	5	3	4	44	5	8.8	1
1998	18	30	8	27	50	17	2.78	1.67
1999	13	28	9	15	38	13	2.92	2.15
2000	23	43	18	32	62	23	2.7	1.87
2001	21	33	15	26	63	21	3	1.57
2002	22	31	14	23	74	20	3.36	1.41
2003	19	34	12	27	105	19	5.53	1.79
2004	30	47	14	44	133	28	4.43	1.57
2005	22	38	20	29	137	20	6.23	1.73
2006	25	38	13	20	176	22	7.04	1.52
2007	28	50	19	44	201	28	7.18	1.79
2008	35	65	23	52	232	31	6.63	1.86
2009	34	66	22	48	260	32	7.65	1.94
2010	41	68	22	58	283	40	6.9	1.66
2011	56	144	29	95	321	56	5.73	2.57
2012	44	86	22	59	373	40	8.48	1.95
2013	70	145	33	94	419	67	5.99	2.07
2014	47	143	31	95	418	43	8.89	3.04
2015	59	136	26	114	476	59	8.07	2.31
2016	62	151	40	109	590	62	9.52	2.44
2017	93	186	36	128	693	84	7.45	2.00
2018	84	213	39	149	726	75	8.64	2.54
2019	107	274	50	193	785	87	7.34	2.56
2020	101	245	48	167	968	83	9.58	2.43
2021	107	318	42	222	1152	96	10.77	2.97
2001–2021	1107	2511	570	1796	8585	1013	7.76	2.08

Source: Author's own calculation, based on Microsoft Excel software.