Rank	Countries/Territories	Count	Percent
1	United States	323	37.5%
2	China	299	34.7%
3	Germany	66	7.7%
4	Canada	33	3.8%
5	France	15	1.7%
6	Italy	12	1.4%
7	Singapore	11	1.3%
8	Russia	10	1.2%
9	Ukraine	10	1.2%
10	Turkey	8	0.9%
11	Netherlands	7	0.8%
12	Japan	7	0.8%
13	Cyprus	6	0.7%
14	Poland	6	0.7%
15	Indonesia	5	0.6%
16	Iran, Islamic Republic of	4	0.5%
17	India	4	0.5%
18	Switzerland	4	0.5%
19	Taiwan	3	0.3%
20	Korea, Republic of	3	0.3%
21	Ghana	2	0.2%
22	Hong Kong	2	0.2%
23	Denmark	2	0.2%
24	Argentina	2	0.2%
25	Australia	2	0.2%
26	United Kingdom	2	0.2%
27	Senegal	2	0.2%
28	Slovenia	2	0.2%
29	Sweden	1	0.1%
30	Portugal	1	0.1%
31	Norway	1	0.1%
32	United Arab Emirates	1	0.1%
33	Thailand	1	0.1%
34	Brazil	1	0.1%
35	Ethiopia	1	0.1%
36	Ireland	1	0.1%
37	Malaysia	1	0.1%
38	Mongolia	1	0.1%