Rank	Countries/Territories	Count	Percent
1	United States	298	36.7%
2	China	225	27.7%
3	Japan	70	8.6%
4	Germany	47	5.8%
5	Netherlands	16	2%
6	Korea, Republic of	15	1.8%
7	Singapore	14	1.7%
8		12	1.5%
9	India	11	1.4%
10	Iran, Islamic Republic of	9	1.1%
11	Hong Kong	7	0.9%
12	United Kingdom	7	0.9%
13	Ireland	6	0.7%
14	Indonesia	6	0.7%
15	Spain	6	0.7%
16	Mexico	5	0.6%
17	Cyprus	5	0.6%
18	Australia	5	0.6%
19	Turkey	5	0.6%
20	Argentina	4	0.5%
21	Canada	4	0.5%
22	Taiwan	4	0.5%
23	Thailand	4	0.5%
24	Mongolia	3	0.4%
25	Peru	2	0.2%
26	Philippines	2	0.2%
27	Sweden	2	0.2%
28	Colombia	2	0.2%
29	France	2	0.2%
30	Ghana	2	0.2%
31	Italy	2	0.2%
32	Ukraine	2	0.2%
33	United Arab Emirates	1	0.1%
34	Chile	1	0.1%
35	Bulgaria	1	0.1%
36	South Africa	1	0.1%
37	Pakistan	1	0.1%
38	Poland	1	0.1%
39	Portugal	1	0.1%
40	Russia	1	0.1%