Rank	Countries/Territories	Count	Percent
1	United States	264	31.4%
2	China	252	30%
3	Germany	81	9.6%
4	Latvia	40	4.8%
5	Japan	32	3.8%
6	France	28	3.3%
7	Russia	18	2.1%
8	India	15	1.8%
9	Canada	12	1.4%
10	Singapore	12	1.4%
11	Netherlands	11	1.3%
12	Cyprus	8	1%
13	Moldova, Republic of	7	0.8%
14	Korea, Republic of	7	0.8%
15	Argentina	6	0.7%
16	Australia	4	0.5%
17	Peru	4	0.5%
18	Portugal	4	0.5%
19	Viet Nam	3	0.4%
20	Kuwait	3	0.4%
21	Angola	3	0.4%
22	Iran, Islamic Republic of	3	0.4%
23	Ireland	2	0.2%
24	Italy	2	0.2%
25	Georgia	2	0.2%
26	Luxembourg	2	0.2%
27	Mongolia	2	0.2%
28	Nigeria	2	0.2%
29	Norway	2	0.2%
30	Taiwan	2	0.2%
31	Ukraine	2	0.2%
32	Poland	2	0.2%
33	Switzerland	1	0.1%
34	Greece	1	0.1%
35	Bangladesh	1	0.1%
36	Bulgaria	1	0.1%