Rank	Countries/Territories	Count	Percent
1	United States	420	35.4%
2	China	410	34.6%
3	Germany	139	11.7%
4	India	24	2%
5	France	20	1.7%
6	Singapore	20	1.7%
7	Netherlands	18	1.5%
8	Poland	13	1.1%
9	Korea, Republic of	12	1%
10	Australia	12	1%
11	Canada	10	0.8%
12	Cyprus	10	0.8%
13	Portugal	10	0.8%
14	United Kingdom	8	0.7%
15	Japan	8	0.7%
16	Senegal	6	0.5%
17	Turkey	5	0.4%
18	Russia	4	0.3%
19	Lithuania	4	0.3%
20	Iran, Islamic Republic of	4	0.3%
21	Ireland	4	0.3%
22	Latvia	3	0.3%
23	Italy	2	0.2%
24	Hong Kong	2	0.2%
25	Afghanistan	2	0.2%
26	Argentina	2	0.2%
27	Pakistan	2	0.2%
28	Mongolia	2	0.2%
29	Romania	2	0.2%
30	Taiwan	2	0.2%
31	Sweden	2	0.2%
32	Switzerland	1	0.1%
33	Slovenia	1	0.1%
34	South Africa	1	0.1%
35	Mexico	1	0.1%