Rank	Countries/Territories	Count	Percent
1	United States	384	37.6%
2	China	222	21.7%
3	Japan	131	12.8%
4	Germany	80	7.8%
5	Russia	20	2%
6	Singapore	20	2%
7	France	19	1.9%
8	Ireland	16	1.6%
9	Canada	15	1.5%
10	Argentina	14	1.4%
11	Netherlands	12	1.2%
12	United Kingdom	12	1.2%
13	Korea, Republic of	8	0.8%
14	Taiwan	8	0.8%
15	India	8	0.8%
16	Iran, Islamic Republic of	7	0.7%
17	Italy	6	0.6%
18	Hong Kong	5	0.5%
19	Mexico	4	0.4%
20	Poland	3	0.3%
21	Romania	3	0.3%
22	Sweden	3	0.3%
23	Turkey	3	0.3%
24	South Africa	2	0.2%
25	Norway	2	0.2%
26	Kenya	2	0.2%
27	Ethiopia	2	0.2%
28	Cyprus	2	0.2%
29	Czech Republic	1	0.1%
30	Denmark	1	0.1%
31	Australia	1	0.1%
32	Mongolia	1	0.1%
33	Macao	1	0.1%
34	Spain	1	0.1%
35	Thailand	1	0.1%
36	Ukraine	1	0.1%
37	Uzbekistan	1	0.1%