Rank	Countries/Territories	Count	Percent
1	United States	618	34.4%
2	China	511	28.4%
3	Germany	110	6.1%
4	India	96	5.3%
5	Brazil	69	3.8%
6	Switzerland	48	2.7%
7	Russia	43	2.4%
8	Netherlands	34	1.9%
9	Italy	33	1.8%
10	Canada	32	1.8%
11	Australia	28	1.6%
12	Japan	15	0.8%
13	Korea, Republic of	14	0.8%
14	Norway	13	0.7%
15	Latvia	12	0.7%
16	Hong Kong	10	0.6%
17	France	9	0.5%
18	Cote D'ivoire	9	0.5%
19	Singapore	8	0.4%
20	Romania	7	0.4%
21	Sweden	7	0.4%
22	Ireland	7	0.4%
23	Austria	6	0.3%
24	Cyprus	5	0.3%
25	Argentina	4	0.2%
26	Hungary	4	0.2%
27	Israel	4	0.2%
28	Iran, Islamic Republic of	4	0.2%
29	Turkey	4	0.2%
30	Spain	3	0.2%
31	Mexico	3	0.2%
32	Mongolia	3	0.2%
33	Ghana	2	0.1%
34	South Africa	2	0.1%
35	Ukraine	2	0.1%
36	United Kingdom	2	0.1%
37	Taiwan	2	0.1%
38	Uzbekistan	1	0.1%
39	Viet Nam	1	0.1%
40	Slovenia	1	0.1%
41	Serbia	1	0.1%
42	Greece	1	0.1%
43	Iceland	1	0.1%
44	Indonesia	1	0.1%
45	Czech Republic	1	0.1%
46	New Zealand	1	0.1%
47	Philippines	1	0.1%
48	Poland	1	0.1%
49	Portugal	1	0.1%
50	Iraq	1	0.1%
51	Lebanon	1	0.1%