Rank	Countries/Territories	Count	Percent
1	United States	422	30.3%
2	China	399	28.7%
3	Germany	120	8.6%
4	India	82	5.9%
5	Japan	37	2.7%
6	Bulgaria	34	2.4%
7	Netherlands	31	2.2%
8	Spain	27	1.9%
9	United Kingdom	26	1.9%
10	Canada	22	1.6%
11	France	16	1.2%
12	Singapore	14	1%
13	Hong Kong	13	0.9%
14	Korea, Republic of	13	0.9%
15	Cyprus	12	0.9%
16	Sweden	12	0.9%
17	Russia	10	0.7%
18	Ireland	9	0.6%
19	Czech Republic	8	0.6%
20	Turkey	8	0.6%
21	Mexico	7	0.5%
22	Denmark	6	0.4%
23	Argentina	5	0.4%
24	Peru	5	0.4%
25	Ukraine	5	0.4%
26	Senegal	4	0.3%
27	Lithuania	4	0.3%
28	Australia	4	0.3%
29	Cote D'ivoire	3	0.2%
30	Latvia	3	0.2%
31	Switzerland	3	0.2%
32	Thailand	3	0.2%
33	Portugal	2	0.1%
34	Pakistan	2	0.1%
35	Brazil	2	0.1%
36	Colombia	2	0.1%
37	Finland	2	0.1%
38	Indonesia	2	0.1%
39	Iran, Islamic Republic of	2	0.1%
40	Iraq	1	0.1%
41	Belgium	1	0.1%
42	Montenegro	1	0.1%
43	Philippines	1	0.1%
44	Poland	1	0.1%
45	Saudi Arabia	1	0.1%
46	Mauritius	1	0.1%
47	Hungary	1	0.1%
48	South Africa	1	0.1%
49	Taiwan	1	0.1%