Rank	Countries/Territories	Count	Percent
1	United States	323	36.4%
2	China	288	32.5%
3	India	76	8.6%
4	Germany	33	3.7%
5	Japan	31	3.5%
6	Russia	24	2.7%
7	Brazil	18	2%
8	Korea, Republic of	17	1.9%
9	Hong Kong	11	1.2%
10	Portugal	7	0.8%
11	Mexico	6	0.7%
12	Canada	5	0.6%
13	France	4	0.5%
14	Netherlands	4	0.5%
15	Singapore	4	0.5%
16	South Africa	4	0.5%
17	Ukraine	4	0.5%
18	Taiwan	3	0.3%
19	Italy	3	0.3%
20	Belgium	3	0.3%
21	Finland	3	0.3%
22	Greece	2	0.2%
23	Israel	2	0.2%
24	Malaysia	2	0.2%
25	Iran, Islamic Republic of	2	0.2%
26	Romania	2	0.2%
27	Switzerland	1	0.1%
28	Turkey	1	0.1%
29	United Kingdom	1	0.1%
30	Viet Nam	1	0.1%
31	Ireland	1	0.1%
32	Argentina	1	0.1%