Table 1. Features for Publication Outputs^a.

PY	P	CF	NR	NR/P	AU	AU/P
2006	52	14	1285	24.71	176	3.38
2007	70	157	2453	35.04	283	4.04
2008	91	394	3769	41.42	319	3.51
2009	128	990	4797	37.48	459	3.59
2010	153	1531	6576	42.98	528	3.45
2011	169	2741	6850	40.53	628	3.72
2012	186	3605	7224	38.84	704	3.78
2013	208	5050	9191	44.19	881	4..24
2014	224	6319	9476	42.30	912	4.07
2015	260	7587	12106	46.56	1059	4.07
2016	293	8950	13980	47.71	1231	4.20
2017	304	10599	16540	54.41	1360	4.47
2018	327	13086	22589	69.08	1587	4.85
2019	355	15704	22672	63.86	1630	4.59
2020	402	19594	27560	68.56	1991	4.95

^aPY, P, and CF represent the year of publication, the number of publications, and the total number of citations, respectively. NR and AU represent the cited reference count and the number of authors, respectively.