Rank	Countries/Territories	Count	Percent
1	United States	221	28.2%
2	China	213	27.2%
3	Germany	132	16.9%
4	Netherlands	38	4.9%
5	Singapore	24	3.1%
6	Bulgaria	22	2.8%
7	Mauritius	13	1.7%
8	France	12	1.5%
9	Japan	12	1.5%
10	South Africa	10	1.3%
11	Latvia	10	1.3%
12	Canada	7	0.9%
13	Hong Kong	6	0.8%
14	Czech Republic	6	0.8%
15	Russia	6	0.8%
16	United Kingdom	4	0.5%
17	India	4	0.5%
18	Australia	4	0.5%
19	Bahrain	3	0.4%
20	Korea, Republic of	3	0.4%
21	Thailand	3	0.4%
22	Turkey	3	0.4%
23	Romania	3	0.4%
24	Lithuania	3	0.4%
25	Nigeria	3	0.4%
26	Viet Nam	3	0.4%
27	Morocco	2	0.3%
28	Ghana	2	0.3%
29	Belgium	2	0.3%
30	Benin	2	0.3%
31	Cote D'ivoire	2	0.3%
32	Argentina	1	0.1%
33	Italy	1	0.1%
34	Philippines	1	0.1%
35	New Zealand	1	0.1%
36	Taiwan	1	0.1%