Rank	Countries/Territories	Count	Percent
1	United States	680	45.4%
2	China	468	31.2%
3	Germany	121	8.1%
4	Japan	37	2.5%
5	France	30	2%
6	Czech Republic	23	1.5%
7	India	23	1.5%
8	Ukraine	15	1%
9	Ireland	9	0.6%
10	Canada	8	0.5%
11	Cyprus	8	0.5%
12	Australia	7	0.5%
13	Hong Kong	7	0.5%
14	Singapore	7	0.5%
15	Netherlands	5	0.3%
16	Taiwan	4	0.3%
17	Italy	4	0.3%
18		4	0.3%
19	United Kingdom	4	0.3%
20	Argentina	3	0.2%
21	Belgium	3	0.2%
22	Greece	3	0.2%
23	Malaysia	3	0.2%
24	Mexico	2	0.1%
25	Mongolia	2	0.1%
26	Iran, Islamic Republic of	2	0.1%
27	Russia	2	0.1%
28	Hungary	2	0.1%
29	Egypt	2	0.1%
30	Algeria	2	0.1%
31	Austria	2	0.1%
32	Norway	1	0.1%
33	Thailand	1	0.1%
34	Turkey	1	0.1%
35	Spain	1	0.1%
36	Korea, Republic of	1	0.1%
37	Indonesia	1	0.1%