Rank	Countries/Territories	Count	Percent
1	United States	339	33.9%
2	China	335	33.5%
3	Japan	90	9%
4	Germany	50	5%
5	Canada	37	3.7%
6	Spain	23	2.3%
7	Korea, Republic of	14	1.4%
8	Belgium	11	1.1%
9	Singapore	11	1.1%
10	United Kingdom	11	1.1%
11	France	10	1%
12	Australia	8	0.8%
13	Netherlands	7	0.7%
14	Cyprus	6	0.6%
15	Iran, Islamic Republic of	5	0.5%
16	Russia	5	0.5%
17	Switzerland	4	0.4%
18	Taiwan	4	0.4%
19	Turkey	3	0.3%
20	Iraq	3	0.3%
21	Pakistan	2	0.2%
22	South Africa	2	0.2%
23	Sweden	2	0.2%
24	Viet Nam	2	0.2%
25	Denmark	2	0.2%
26	Argentina	2	0.2%
27	Hong Kong	2	0.2%
28	India	2	0.2%
29	Mauritius	2	0.2%
30	Mexico	2	0.2%
31	Brazil	1	0.1%
32	Colombia	1	0.1%
33	Ukraine	1	0.1%
34	Slovenia	1	0.1%