Rank	Countries/Territories	Count	Percent
1	United States	540	38.6%
2	China	513	36.6%
3	Germany	129	9.2%
4	Latvia	41	2.9%
5	France	39	2.8%
6	Japan	37	2.6%
7	India	15	1.1%
8	Singapore	13	0.9%
9	Netherlands	10	0.7%
10	Ukraine	8	0.6%
11	Cyprus	7	0.5%
12	Canada	6	0.4%
13	Taiwan	6	0.4%
14	Hong Kong	5	0.4%
15	Australia	4	0.3%
16	Korea, Republic of	4	0.3%
17	Poland	4	0.3%
18	Turkey	3	0.2%
19	Brazil	3	0.2%
20	Argentina	2	0.1%
21	Morocco	2	0.1%
22	Ireland	2	0.1%
23	Viet Nam	2	0.1%
24	Portugal	2	0.1%
25	Spain	2	0.1%
26	Iran, Islamic Republic of	1	0.1%