Rank	Countries/Territories	Count	Percent
1	United States	617	52.3%
2	China	253	21.4%
3	Germany	79	6.7%
4	India	25	2.1%
5	Japan	23	1.9%
6	Latvia	14	1.2%
7	Canada	13	1.1%
8	Hong Kong	10	0.8%
9	Netherlands	10	0.8%
10	Singapore	9	0.8%
11	Spain	8	0.7%
12	Australia	8	0.7%
13	Czech Republic	8	0.7%
14	Brazil	7	0.6%
15	Romania	7	0.6%
16	Taiwan	7	0.6%
17	Portugal	6	0.5%
18	United Kingdom	6	0.5%
19	Ireland	6	0.5%
20	Denmark	6	0.5%
21	Mexico	5	0.4%
22	Norway	5	0.4%
23	Russia	4	0.3%
24	Argentina	4	0.3%
25	Cyprus	4	0.3%
26	Italy	4	0.3%
27	Thailand	3	0.3%
28	Turkey	3	0.3%
29	France	3	0.3%
30	Greece	3	0.3%
31	Austria	3	0.3%
32	Iran, Islamic Republic of	3	0.3%
33	Poland	2	0.2%
34	Finland	2	0.2%
35	Ukraine	2	0.2%
36	Switzerland	1	0.1%
37	Egypt	1	0.1%
38	Ethiopia	1	0.1%
39	Nigeria	1	0.1%
40	Saudi Arabia	1	0.1%
41	Serbia	1	0.1%
42	Israel	1	0.1%
43	Korea, Republic of	1	0.1%