Rank	Countries/Territories	Count	Percent
1	United States	640	40.5%
2	China	533	33.7%
3	Germany	168	10.6%
4	France	69	4.4%
5	Canada	24	1.5%
6	Japan	23	1.5%
7	Korea, Republic of	16	1%
8	Russia	14	0.9%
9	Netherlands	11	0.7%
10	Hong Kong	10	0.6%
11	Australia	9	0.6%
12	Cyprus	9	0.6%
13	Singapore	9	0.6%
14	Ukraine	7	0.4%
15	United Kingdom	6	0.4%
16	Iran, Islamic Republic of	4	0.3%
17	Italy	3	0.2%
18	India	3	0.2%
19	Taiwan	3	0.2%
20	Malaysia	3	0.2%
21	Mexico	2	0.1%
22	Morocco	2	0.1%
23	Norway	2	0.1%
24	Latvia	2	0.1%
25	Greece	2	0.1%
26	Brazil	2	0.1%
27	Argentina	1	0.1%
28	Lithuania	1	0.1%
29	Serbia	1	0.1%
30	Mongolia	1	0.1%
31	Switzerland	1	0.1%