Rank	Countries/Territories	Count	Percent
1	United States	482	46.3%
2	China	241	23.2%
3	Germany	79	7.6%
4	India	43	4.1%
5	Russia	33	3.2%
6	Canada	23	2.2%
7	Korea, Republic of	19	1.8%
8	France	17	1.6%
9	United Kingdom	14	1.3%
10	Netherlands	11	1.1%
11	Japan	10	1%
12	Iran, Islamic Republic of	10	1%
13	Hong Kong	8	0.8%
14	Poland	6	0.6%
15	Switzerland	5	0.5%
16	Ireland	5	0.5%
17	Colombia	4	0.4%
18	Australia	4	0.4%
19	Sweden	4	0.4%
20	Turkey	4	0.4%
21	Singapore	3	0.3%
22	Taiwan	2	0.2%
23	South Africa	2	0.2%
24	Austria	2	0.2%
25	Cyprus	1	0.1%
26	Greece	1	0.1%
27	Israel	1	0.1%
28	Latvia	1	0.1%
29	Luxembourg	1	0.1%
30	Slovakia	1	0.1%
31	Norway	1	0.1%
32	Philippines	1	0.1%
33	Ukraine	1	0.1%