Rank	Countries/Territories	Count	Percent
1	United States	605	35.4%
2	China	452	26.4%
3	Germany	168	9.8%
4	Ukraine	81	4.7%
5	France	70	4.1%
6	Switzerland	66	3.9%
7	India	60	3.5%
8	Singapore	33	1.9%
9	Netherlands	31	1.8%
10	Japan	23	1.3%
11	Canada	20	1.2%
12	Russia	15	0.9%
13	Australia	11	0.6%
14	Cyprus	11	0.6%
15	Ireland	9	0.5%
16	Hong Kong	8	0.5%
17	Korea, Republic of	5	0.3%
18	United Kingdom	4	0.2%
19	Iran, Islamic Republic of	4	0.2%
20	Colombia	3	0.2%
21	Taiwan	3	0.2%
22	Norway	3	0.2%
23	Viet Nam	3	0.2%
24	New Zealand	2	0.1%
25	Malaysia	2	0.1%
26	Mongolia	2	0.1%
27	Portugal	2	0.1%
28	Bangladesh	2	0.1%
29	Argentina	2	0.1%
30	Egypt	2	0.1%
31	Italy	1	0.1%
32	Bulgaria	1	0.1%
33	Ecuador	1	0.1%
34	Romania	1	0.1%
35	Spain	1	0.1%
36	Lithuania	1	0.1%
37	Pakistan	1	0.1%
38	Poland	1	0.1%