Rank	Countries/Territories	Count	Percent
1	United States	627	44.5%
2	China	407	28.9%
3	Germany	168	11.9%
4	Netherlands	31	2.2%
5	France	30	2.1%
6	Japan	29	2.1%
7	India	14	1%
8	Canada	14	1%
9	Australia	10	0.7%
10	United Kingdom	9	0.6%
11	Ireland	8	0.6%
12	Sweden	7	0.5%
13	Cyprus	7	0.5%
14	Iran, Islamic Republic of	7	0.5%
15	South Africa	5	0.4%
16	Russia	5	0.4%
17	Korea, Republic of	4	0.3%
18	Viet Nam	3	0.2%
19	Switzerland	3	0.2%
20	Mongolia	3	0.2%
21	Norway	2	0.1%
22	Taiwan	2	0.1%
23	Ukraine	2	0.1%
24	Singapore	2	0.1%
25	Latvia	2	0.1%
26	Hong Kong	2	0.1%
27	Hungary	2	0.1%
28	Czech Republic	1	0.1%
29	Argentina	1	0.1%
30	Malaysia	1	0.1%
31	Iraq	1	0.1%
32	Indonesia	1	0.1%