Rank	Countries/Territories	Count	Percent
1	United States	247	31.5%
2	China	200	25.5%
3	Japan	68	8.7%
4	Russia	61	7.8%
5	Germany	53	6.8%
6	South Africa	41	5.2%
7	India	24	3.1%
8	Korea, Republic of	9	1.1%
9	Canada	9	1.1%
10	United Kingdom	9	1.1%
11	Australia	7	0.9%
12	Israel	7	0.9%
13	Hong Kong	6	0.8%
14	Senegal	6	0.8%
15	Singapore	5	0.6%
16	Mongolia	4	0.5%
17	Argentina	4	0.5%
18	Greece	3	0.4%
19	Ukraine	3	0.4%
20	Sweden	2	0.3%
21	Peru	2	0.3%
22	Philippines	2	0.3%
23	Poland	2	0.3%
24	Colombia	2	0.3%
25	France	2	0.3%
26	Mexico	2	0.3%
27	Malaysia	1	0.1%
28	Italy	1	0.1%
29	Ireland	1	0.1%
30	Bahrain	1	0.1%
31	Spain	1	0.1%