Rank	Countries/Territories	Count	Percent
1	United States	314	37.6%
2	China	264	31.6%
3	Germany	66	7.9%
4	Japan	25	3%
5	Korea, Republic of	16	1.9%
6	India	15	1.8%
7	Canada	14	1.7%
8	France	13	1.6%
9	Netherlands	11	1.3%
10	Singapore	11	1.3%
11		9	1.1%
12	United Kingdom	9	1.1%
13	Australia	8	1%
14	Iran, Islamic Republic of	6	0.7%
15	United Arab Emirates	5	0.6%
16	Ireland	4	0.5%
17	Hong Kong	4	0.5%
18	Argentina	4	0.5%
19	Cyprus	4	0.5%
20	Turkey	4	0.5%
21	Taiwan	3	0.4%
22	Colombia	3	0.4%
23	Ecuador	2	0.2%
24	Egypt	2	0.2%
25	Belgium	2	0.2%
26	Russia	2	0.2%
27	Switzerland	2	0.2%
28	South Africa	2	0.2%
29	Spain	2	0.2%
30	Mexico	2	0.2%
31	Morocco	1	0.1%
32	New Zealand	1	0.1%
33	Philippines	1	0.1%
34	Lithuania	1	0.1%
35	Mauritius	1	0.1%
36	Sweden	1	0.1%
37	Italy	1	0.1%
38	Virgin Islands, British	1	0.1%