Rank	Countries/Territories	Count	Percent
1	United States	219	31.7%
2	China	207	30%
3	Germany	79	11.4%
4	Japan	20	2.9%
5	France	18	2.6%
6	Switzerland	15	2.2%
7	Ukraine	15	2.2%
8	Netherlands	14	2%
9	India	10	1.4%
10	Taiwan	8	1.2%
11	Russia	7	1%
12	Korea, Republic of	7	1%
13	Mauritius	6	0.9%
14	Turkey	5	0.7%
15	Australia	5	0.7%
16	Brazil	5	0.7%
17	Italy	4	0.6%
18	Thailand	4	0.6%
19	South Africa	3	0.4%
20	Spain	3	0.4%
21	Ireland	3	0.4%
22	Hong Kong	3	0.4%
23	Canada	3	0.4%
24	Cyprus	3	0.4%
25	United Kingdom	3	0.4%
26	Argentina	2	0.3%
27	Finland	2	0.3%
28	Iran, Islamic Republic of	2	0.3%
29	Singapore	2	0.3%
30	Mongolia	2	0.3%
31	Lithuania	2	0.3%
32	Malaysia	2	0.3%
33	Norway	1	0.1%
34	Poland	1	0.1%
35	Saudi Arabia	1	0.1%
36	Greece	1	0.1%
37	Czech Republic	1	0.1%
38	Dominican Republic	1	0.1%
39	Estonia	1	0.1%