Table 2.

Top ten most productive nations

Rank	Country name	n	n (%)	BC
1	India	544	16.51	0.31
2	USA	499	15.15	0.39
3	Germany	282	8.56	0.3
4	China	258	7.83	0.09
5	Japan	209	6.34	0.18
6	UK	193	5.86	0.09
7	Australia	155	4.71	0.04
8	Malaysia	119	3.61	0.06
9	Italy	111	3.37	0.11
10	France	95	2.88	0.11