Rank	Countries/Territories	Count	Percent
1	United States	463	40.9%
2	China	256	22.6%
3	Germany	116	10.2%
4	Netherlands	66	5.8%
5	United Kingdom	48	4.2%
6		38	3.4%
7	Japan	22	1.9%
8	France	19	1.7%
9	Spain	15	1.3%
10	Singapore	12	1.1%
11	Norway	10	0.9%
12	Russia	7	0.6%
13	Iran, Islamic Republic of	5	0.4%
14	Canada	5	0.4%
15	Belgium	5	0.4%
16	Brazil	4	0.4%
17	Cyprus	4	0.4%
18	Argentina	4	0.4%
19	Australia	4	0.4%
20	Ireland	4	0.4%
21	Sweden	4	0.4%
22	Mexico	3	0.3%
23	Mongolia	3	0.3%
24	Korea, Republic of	3	0.3%
25	Latvia	2	0.2%
26	Finland	2	0.2%
27	Bulgaria	2	0.2%
28	Viet Nam	2	0.2%
29	Taiwan	1	0.1%
30	Bangladesh	1	0.1%
31	Lithuania	1	0.1%
32	Hong Kong	1	0.1%