Rank	Countries/Territories	Count	Percent
1	United States	337	39%
2	China	206	23.9%
3	Germany	106	12.3%
4	India	31	3.6%
5	Spain	22	2.5%
6	Korea, Republic of	20	2.3%
7	Japan	17	2%
8	Russia	13	1.5%
9	France	13	1.5%
10	Ireland	10	1.2%
11	Singapore	10	1.2%
12	Ukraine	10	1.2%
13	Turkey	9	1%
14	United Kingdom	8	0.9%
15	Iraq	6	0.7%
16	Canada	6	0.7%
17	Hong Kong	5	0.6%
18	Brazil	4	0.5%
19	Argentina	3	0.3%
20	Cyprus	3	0.3%
21	Czech Republic	3	0.3%
22	Iran, Islamic Republic of	3	0.3%
23	Netherlands	3	0.3%
24	Philippines	3	0.3%
25	Poland	2	0.2%
26	Italy	2	0.2%
27	Mexico	2	0.2%
28	Australia	2	0.2%
29	Belgium	2	0.2%
30	Peru	1	0.1%
31	Switzerland	1	0.1%