Rank	Countries/Territories	Count	Percent
1	United States	569	44.1%
2	China	387	30%
3	Germany	80	6.2%
4	India	45	3.5%
5	Russia	45	3.5%
6	Korea, Republic of	27	2.1%
7	Japan	23	1.8%
8	United Kingdom	18	1.4%
9	Australia	9	0.7%
10	Canada	9	0.7%
11	Ireland	7	0.5%
12	Hong Kong	7	0.5%
13	Saudi Arabia	7	0.5%
14	Singapore	6	0.5%
15	Italy	6	0.5%
16	Spain	5	0.4%
17	Romania	4	0.3%
18	Taiwan	4	0.3%
19	Netherlands	4	0.3%
20	Cyprus	4	0.3%
21	Czech Republic	2	0.2%
22	Argentina	2	0.2%
23	Brazil	2	0.2%
24	Iran, Islamic Republic of	2	0.2%
25	Poland	2	0.2%
26	Malaysia	2	0.2%
27	Ukraine	2	0.2%
28	Switzerland	2	0.2%
29	Sweden	1	0.1%
30	Thailand	1	0.1%
31	Mongolia	1	0.1%
32	South Africa	1	0.1%
33	Serbia	1	0.1%
34	Hungary	1	0.1%
35	Israel	1	0.1%
36	Denmark	1	0.1%
37	France	1	0.1%