Rank	Countries/Territories	Count	Percent
1	United States	487	39.1%
2	China	415	33.3%
3	Germany	98	7.9%
4	Spain	24	1.9%
5	France	23	1.8%
6	Japan	22	1.8%
7	Netherlands	22	1.8%
8	Korea, Republic of	19	1.5%
9	Iran, Islamic Republic of	14	1.1%
10	Turkey	14	1.1%
11	United Kingdom	12	1%
12	Canada	12	1%
13	India	11	0.9%
14	Sweden	10	0.8%
15	Italy	9	0.7%
16	Russia	7	0.6%
17	Pakistan	6	0.5%
18	Australia	6	0.5%
19	Hong Kong	5	0.4%
20	Argentina	4	0.3%
21	Cyprus	3	0.2%
22	Portugal	3	0.2%
23	Romania	2	0.2%
24	Poland	2	0.2%
25	Singapore	2	0.2%
26	Slovenia	2	0.2%
27	Taiwan	2	0.2%
28	United Arab Emirates	2	0.2%
29	Ireland	2	0.2%
30	Israel	2	0.2%
31	Lithuania	1	0.1%
32	Mongolia	1	0.1%
33	Belgium	1	0.1%
34	Ukraine	1	0.1%