Rank	Countries/Territories	Count	Percent
1	United States	609	41.2%
2	China	495	33.5%
3	Germany	94	6.4%
4	Japan	80	5.4%
5	Latvia	45	3%
6	Canada	23	1.6%
7	Singapore	21	1.4%
8		20	1.4%
9	France	10	0.7%
10	Netherlands	9	0.6%
11	Ireland	9	0.6%
12	Argentina	6	0.4%
13	India	5	0.3%
14	United Kingdom	5	0.3%
15	Nigeria	4	0.3%
16	Korea, Republic of	4	0.3%
17	Hong Kong	4	0.3%
18	Cyprus	4	0.3%
19	Bulgaria	4	0.3%
20	Austria	4	0.3%
21	South Africa	3	0.2%
22	Viet Nam	3	0.2%
23	Ukraine	2	0.1%
24	Mongolia	2	0.1%
25	Bangladesh	2	0.1%
26	Belgium	2	0.1%
27	Brazil	2	0.1%
28	Australia	2	0.1%
29	Italy	2	0.1%
30	Iran, Islamic Republic of	1	0.1%
31	Russia	1	0.1%
32	Saudi Arabia	1	0.1%