Table 4. The authorship Pattern of MJIRI articles based on the number of authors in each article .

Year	Authorship Pattern				Total
	Single author	Two Authors	Three Authors	More than 3 Authors
1987	3	6	4	3	16
1988	17	12	10	8	47
1989	12	12	8	13	45
1990	12	15	6	13	46
1991	6	10	8	9	33
1992	23	7	8	6	44
1993	18	22	14	7	61
1994	10	18	14	7	49
1995	11	17	15	14	57
1996	8	21	19	19	67
1997	8	36	14	16	74
1998	16	23	21	23	83
1999	10	28	14	12	64
2000	8	29	23	20	80
2001	7	16	17	17	57
2002	5	14	17	13	49
2003	10	19	20	15	64
2004	4	22	15	29	70
2005	5	16	12	36	69
2006	3	13	20	14	50
2007	1	10	10	21	42
2008	0	5	13	22	40
2009	2	4	8	26	40
2010	0	2	8	31	41
2011	4	6	5	33	48
2012	2	3	5	26	36
2013	2	7	9	24	42
2014	2	11	27	118	158
2015	3	9	23	119	154
2016	3	14	21	128	166
2017	1	5	19	114	139
2018	2	10	20	103	135
Total	218	442	447	1059	2166
%	10.06	20.40	20.63	48.89	100.00