Rank	Countries/Territories	Count	Percent
1	United States	627	48.2%
2	China	362	27.8%
3	Germany	121	9.3%
4	France	36	2.8%
5	Japan	31	2.4%
6	Spain	20	1.5%
7	Canada	16	1.2%
8	Singapore	13	1%
9	United Kingdom	9	0.7%
10	Iran, Islamic Republic of	7	0.5%
11	Hong Kong	6	0.5%
12	Malaysia	5	0.4%
13	Netherlands	5	0.4%
14	Sweden	4	0.3%
15	Latvia	4	0.3%
16	Cyprus	4	0.3%
17	Brazil	4	0.3%
18	Mongolia	3	0.2%
19	South Africa	3	0.2%
20	Russia	2	0.2%
21	Taiwan	2	0.2%
22	Ukraine	2	0.2%
23	Australia	2	0.2%
24	Denmark	2	0.2%
25	Hungary	2	0.2%
26	India	2	0.2%
27	Lithuania	1	0.1%
28	Greece	1	0.1%
29	Cote D'ivoire	1	0.1%
30	Bangladesh	1	0.1%
31	Argentina	1	0.1%
32	Switzerland	1	0.1%
33	Nigeria	1	0.1%