Rank	Countries/Territories	Count	Percent
1	United States	528	36.2%
2	China	515	35.3%
3	India	144	9.9%
4	Germany	74	5.1%
5	Russia	27	1.8%
6	Canada	19	1.3%
7	Netherlands	17	1.2%
8	Japan	16	1.1%
9	Latvia	15	1%
10	Ireland	12	0.8%
11	Brazil	11	0.8%
12	Korea, Republic of	10	0.7%
13	United Kingdom	10	0.7%
14	France	7	0.5%
15	Israel	7	0.5%
16	Finland	6	0.4%
17	Singapore	6	0.4%
18	Serbia	4	0.3%
19	Taiwan	4	0.3%
20	Australia	4	0.3%
21	Italy	4	0.3%
22	Iran, Islamic Republic of	3	0.2%
23	Mongolia	3	0.2%
24	Norway	2	0.1%
25	South Africa	2	0.1%
26	Spain	2	0.1%
27	Switzerland	2	0.1%
28	Denmark	2	0.1%
29	Hong Kong	2	0.1%
30	Lithuania	1	0.1%
31	Turkey	1	0.1%