Rank	Countries/Territories	Count	Percent
1	United States	491	35.9%
2	China	402	29.4%
3	Germany	161	11.8%
4	Netherlands	42	3.1%
5	France	31	2.3%
6	Japan	30	2.2%
7	Russia	28	2%
8	Thailand	16	1.2%
9	Bulgaria	14	1%
10	Cyprus	13	1%
11	India	12	0.9%
12	United Kingdom	12	0.9%
13	Switzerland	9	0.7%
14	Canada	8	0.6%
15	Italy	7	0.5%
16	Senegal	6	0.4%
17	Hong Kong	6	0.4%
18	Poland	6	0.4%
19	Turkey	5	0.4%
20	Indonesia	5	0.4%
21	Ireland	5	0.4%
22	Singapore	5	0.4%
23	South Africa	5	0.4%
24	Australia	4	0.3%
25	Romania	4	0.3%
26	Brazil	3	0.2%
27	Argentina	2	0.1%
28	Austria	2	0.1%
29	Bangladesh	2	0.1%
30	Greece	2	0.1%
31	Pakistan	2	0.1%
32	Kazakhstan	2	0.1%
33	Korea, Republic of	2	0.1%
34	Kuwait	2	0.1%
35	Ukraine	2	0.1%
36	United Arab Emirates	2	0.1%
37	Togo	2	0.1%
38	Portugal	2	0.1%
39	Taiwan	1	0.1%
40	Latvia	1	0.1%
41	Malaysia	1	0.1%
42	Malta	1	0.1%
43	Mexico	1	0.1%
44	Myanmar	1	0.1%
45	Norway	1	0.1%
46	Oman	1	0.1%
47	Chile	1	0.1%
48	Denmark	1	0.1%
49	Egypt	1	0.1%
50	Finland	1	0.1%