Rank	Countries/Territories	Count	Percent
1	United States	429	34.3%
2	China	414	33.1%
3	Germany	133	10.6%
4	Japan	47	3.8%
5	France	25	2%
6	Canada	25	2%
7	Netherlands	16	1.3%
8	Australia	14	1.1%
9	Romania	13	1%
10	Ireland	12	1%
11	Korea, Republic of	11	0.9%
12	Philippines	10	0.8%
13	Turkey	9	0.7%
14	Italy	9	0.7%
15	Austria	9	0.7%
16	Singapore	8	0.6%
17	Brazil	6	0.5%
18	Indonesia	6	0.5%
19	Cyprus	5	0.4%
20	Russia	5	0.4%
21	Taiwan	4	0.3%
22	Iran, Islamic Republic of	4	0.3%
23	Palestine, State of	4	0.3%
24	United Kingdom	4	0.3%
25	Ethiopia	3	0.2%
26	Mexico	3	0.2%
27	India	2	0.2%
28	Nicaragua	2	0.2%
29	Norway	2	0.2%
30	Latvia	2	0.2%
31	Malaysia	2	0.2%
32	Ukraine	2	0.2%
33	Czech Republic	2	0.2%
34	Denmark	2	0.2%
35	Argentina	2	0.2%
36	Greece	1	0.1%
37	Hong Kong	1	0.1%
38	Poland	1	0.1%