Rank	Countries/Territories	Count	Percent
1	United States	501	39.3%
2	China	301	23.6%
3	Germany	145	11.4%
4	France	47	3.7%
5		41	3.2%
6	Russia	36	2.8%
7	Thailand	23	1.8%
8	Japan	23	1.8%
9	Canada	17	1.3%
10	Switzerland	15	1.2%
11	Singapore	13	1%
12	Netherlands	12	0.9%
13	United Kingdom	11	0.9%
14	Australia	11	0.9%
15	Cyprus	10	0.8%
16	Argentina	9	0.7%
17	Korea, Republic of	9	0.7%
18	Hong Kong	9	0.7%
19	India	7	0.5%
20	Iran, Islamic Republic of	6	0.5%
21	Ireland	6	0.5%
22	Malaysia	4	0.3%
23	Botswana	2	0.2%
24	Taiwan	2	0.2%
25	Romania	2	0.2%
26	South Africa	2	0.2%
27	Sweden	2	0.2%
28	Saudi Arabia	2	0.2%
29	Pakistan	1	0.1%
30	Portugal	1	0.1%
31	Ukraine	1	0.1%
32	Austria	1	0.1%
33	Mongolia	1	0.1%
34	Morocco	1	0.1%