Rank	Countries/Territories	Count	Percent
1	United States	537	38.1%
2	China	414	29.4%
3	Germany	140	9.9%
4	India	45	3.2%
5	France	42	3%
6	Japan	22	1.6%
7		17	1.2%
8	Latvia	16	1.1%
9	Ukraine	14	1%
10	Singapore	13	0.9%
11	Korea, Republic of	12	0.9%
12	Australia	12	0.9%
13	Ireland	10	0.7%
14	United Kingdom	9	0.6%
15	Netherlands	8	0.6%
16	Canada	8	0.6%
17	Hong Kong	8	0.6%
18	Belgium	7	0.5%
19	Russia	7	0.5%
20	Spain	6	0.4%
21	Italy	6	0.4%
22	Argentina	6	0.4%
23	Iran, Islamic Republic of	6	0.4%
24	Angola	5	0.4%
25	Taiwan	5	0.4%
26	Morocco	5	0.4%
27	Thailand	4	0.3%
28	Bangladesh	4	0.3%
29	Cyprus	4	0.3%
30	Brazil	3	0.2%
31	Turkey	3	0.2%
32	Saudi Arabia	2	0.1%
33	Poland	2	0.1%
34	Austria	2	0.1%
35	Romania	1	0.1%
36	Moldova, Republic of	1	0.1%
37	Slovenia	1	0.1%
38	Sweden	1	0.1%