Rank	Countries/Territories	Count	Percent
1	United States	606	53.8%
2	China	198	17.6%
3	Germany	125	11.1%
4	Japan	61	5.4%
5	India	17	1.5%
6	Netherlands	17	1.5%
7	Singapore	14	1.2%
8	Russia	12	1.1%
9	France	9	0.8%
10	Portugal	9	0.8%
11	Korea, Republic of	8	0.7%
12	Canada	7	0.6%
13	Ireland	5	0.4%
14	United Kingdom	4	0.4%
15	Nicaragua	3	0.3%
16	Cyprus	3	0.3%
17	Hong Kong	3	0.3%
18	Iran, Islamic Republic of	2	0.2%
19	Egypt	2	0.2%
20	Australia	2	0.2%
21	Bangladesh	2	0.2%
22	Brazil	2	0.2%
23	Italy	2	0.2%
24	Pakistan	2	0.2%
25	Tunisia	2	0.2%
26	Ukraine	2	0.2%
27	Taiwan	1	0.1%
28	Tanzania, United Republic of	1	0.1%
29	Philippines	1	0.1%
30	Norway	1	0.1%
31	Austria	1	0.1%
32	Argentina	1	0.1%
33	Mexico	1	0.1%
34	Moldova, Republic of	1	0.1%