Rank	Countries/Territories	Count	Percent
1	United States	583	43.2%
2	China	335	24.9%
3	Germany	101	7.5%
4	Netherlands	42	3.1%
5	France	31	2.3%
6	Australia	30	2.2%
7	Russia	23	1.7%
8	Japan	19	1.4%
9	United Kingdom	19	1.4%
10	Bulgaria	16	1.2%
11	Canada	15	1.1%
12	Taiwan	14	1%
13	Bangladesh	11	0.8%
14	Spain	8	0.6%
15	Sweden	8	0.6%
16	Singapore	7	0.5%
17	Ireland	7	0.5%
18	Cote D'ivoire	6	0.4%
19	Cyprus	6	0.4%
20	Argentina	6	0.4%
21	Sri Lanka	6	0.4%
22	Czech Republic	5	0.4%
23	Brazil	4	0.3%
24	Romania	4	0.3%
25	Colombia	3	0.2%
26	Italy	3	0.2%
27	Hong Kong	3	0.2%
28	India	3	0.2%
29	South Africa	3	0.2%
30	Oman	3	0.2%
31	Philippines	3	0.2%
32	Peru	2	0.1%
33	Mauritius	2	0.1%
34	Nigeria	2	0.1%
35	Indonesia	2	0.1%
36	Iran, Islamic Republic of	2	0.1%
37	Viet Nam	2	0.1%
38	Switzerland	1	0.1%
39	Uganda	1	0.1%
40	Ukraine	1	0.1%
41	Belgium	1	0.1%
42	New Zealand	1	0.1%
43	Mongolia	1	0.1%
44	Korea, Republic of	1	0.1%
45	Latvia	1	0.1%
46	Portugal	1	0.1%