Rank	Countries/Territories	Count	Percent
1	United States	467	37.5%
2	China	373	29.9%
3	Germany	104	8.3%
4	France	63	5.1%
5	Canada	61	4.9%
6	Netherlands	39	3.1%
7	Singapore	19	1.5%
8	Japan	18	1.4%
9	Iran, Islamic Republic of	16	1.3%
10	Australia	10	0.8%
11	Cyprus	10	0.8%
12	United Kingdom	10	0.8%
13	Ireland	9	0.7%
14	Sweden	7	0.6%
15	Argentina	6	0.5%
16	Korea, Republic of	5	0.4%
17	Hong Kong	4	0.3%
18	India	3	0.2%
19	Russia	3	0.2%
20	Turkey	2	0.2%
21	South Africa	2	0.2%
22	Romania	2	0.2%
23	Mexico	2	0.2%
24	Hungary	2	0.2%
25	Austria	2	0.2%
26	Chile	2	0.2%
27	Brazil	1	0.1%
28	Georgia	1	0.1%
29	Lithuania	1	0.1%
30	Mongolia	1	0.1%
31	Ukraine	1	0.1%