Rank	Countries/Territories	Count	Percent
1	United States	278	36.7%
2	China	272	35.9%
3	Germany	64	8.4%
4	Canada	15	2%
5	France	14	1.8%
6	Singapore	11	1.5%
7	Ukraine	10	1.3%
8	Russia	10	1.3%
9	Turkey	8	1.1%
10	Italy	7	0.9%
11	Japan	7	0.9%
12	Cyprus	6	0.8%
13	Poland	6	0.8%
14	Netherlands	6	0.8%
15	Indonesia	5	0.7%
16	India	4	0.5%
17	Switzerland	4	0.5%
18	Taiwan	3	0.4%
19	Korea, Republic of	3	0.4%
20	Hong Kong	2	0.3%
21	Denmark	2	0.3%
22	Australia	2	0.3%
23	Slovenia	2	0.3%
24	Iran, Islamic Republic of	2	0.3%
25	Senegal	2	0.3%
26	United Kingdom	2	0.3%
27	Portugal	1	0.1%
28	Norway	1	0.1%
29	Sweden	1	0.1%
30	Thailand	1	0.1%
31	United Arab Emirates	1	0.1%
32	Brazil	1	0.1%
33	Argentina	1	0.1%
34	Ethiopia	1	0.1%
35	Ghana	1	0.1%
36	Malaysia	1	0.1%
37	Mongolia	1	0.1%