Rank	Countries/Territories	Count	Percent
1	United States	348	47.6%
2	China	159	21.8%
3	Germany	83	11.4%
4	Japan	18	2.5%
5	India	13	1.8%
6	United Kingdom	11	1.5%
7	Netherlands	10	1.4%
8		9	1.2%
9	Korea, Republic of	7	1%
10	France	7	1%
11	Canada	6	0.8%
12	Malaysia	5	0.7%
13	Serbia	4	0.5%
14	Singapore	4	0.5%
15	Brazil	4	0.5%
16	Cyprus	4	0.5%
17	Argentina	4	0.5%
18	Iran, Islamic Republic of	3	0.4%
19	Hong Kong	3	0.4%
20	Turkey	3	0.4%
21	United Arab Emirates	2	0.3%
22	Sweden	2	0.3%
23	Switzerland	2	0.3%
24	Philippines	2	0.3%
25	Romania	2	0.3%
26	Russia	2	0.3%
27	Saudi Arabia	2	0.3%
28	Latvia	2	0.3%
29	Australia	2	0.3%
30	Belgium	2	0.3%
31	Czech Republic	1	0.1%
32	Indonesia	1	0.1%
33	South Africa	1	0.1%
34	Mexico	1	0.1%
35	Nepal	1	0.1%
36	Taiwan	1	0.1%