Rank	Countries/Territories	Count	Percent
1	United States	491	38%
2	China	429	33.2%
3	Germany	85	6.6%
4	Netherlands	56	4.3%
5	France	53	4.1%
6	Canada	22	1.7%
7	Korea, Republic of	19	1.5%
8	Japan	16	1.2%
9	Moldova, Republic of	14	1.1%
10	Hong Kong	11	0.9%
11	India	10	0.8%
12	United Kingdom	8	0.6%
13	Singapore	7	0.5%
14	Australia	7	0.5%
15	Cyprus	6	0.5%
16	Slovakia	6	0.5%
17	Spain	5	0.4%
18	Switzerland	4	0.3%
19	Taiwan	4	0.3%
20	Brazil	4	0.3%
21	Iran, Islamic Republic of	4	0.3%
22	Indonesia	3	0.2%
23	Hungary	3	0.2%
24	Russia	3	0.2%
25	Ukraine	2	0.2%
26	Mongolia	2	0.2%
27	Malaysia	2	0.2%
28	Norway	2	0.2%
29	Ireland	2	0.2%
30	Italy	2	0.2%
31	Bulgaria	2	0.2%
32	Denmark	1	0.1%
33	Egypt	1	0.1%
34	Israel	1	0.1%
35	Poland	1	0.1%
36	Romania	1	0.1%
37	New Zealand	1	0.1%
38	Mexico	1	0.1%