Rank	Countries/Territories	Count	Percent
1	United States	349	32.6%
2	China	337	31.5%
3	Germany	108	10.1%
4	Japan	33	3.1%
5	France	30	2.8%
6	Switzerland	25	2.3%
7	Netherlands	14	1.3%
8	Canada	14	1.3%
9	United Kingdom	14	1.3%
10	India	13	1.2%
11	Iran, Islamic Republic of	11	1%
12	Spain	10	0.9%
13	Italy	10	0.9%
14	Russia	9	0.8%
15	Korea, Republic of	8	0.7%
16	Cyprus	8	0.7%
17	Australia	8	0.7%
18	Thailand	8	0.7%
19	Taiwan	7	0.7%
20	Finland	6	0.6%
21	Hong Kong	6	0.6%
22	Singapore	5	0.5%
23	Ireland	4	0.4%
24	Greece	4	0.4%
25	Brazil	3	0.3%
26	Portugal	3	0.3%
27	Slovakia	2	0.2%
28	Poland	2	0.2%
29	Malaysia	2	0.2%
30	Mexico	2	0.2%
31	Israel	2	0.2%
32	Turkey	2	0.2%
33	Ukraine	2	0.2%
34	Tunisia	1	0.1%
35	Georgia	1	0.1%
36	Argentina	1	0.1%
37	Belgium	1	0.1%
38	Czech Republic	1	0.1%
39	Philippines	1	0.1%
40	Hungary	1	0.1%
41	Jordan	1	0.1%
42	Syrian Arab Republic	1	0.1%