Rank	Countries/Territories	Count	Percent
1	United States	568	38.3%
2	China	400	27%
3	Germany	165	11.1%
4	Latvia	60	4%
5	Norway	49	3.3%
6	Korea, Republic of	49	3.3%
7	France	33	2.2%
8	Japan	28	1.9%
9	India	27	1.8%
10	Netherlands	24	1.6%
11	Singapore	12	0.8%
12	Taiwan	10	0.7%
13	Canada	7	0.5%
14	Australia	6	0.4%
15	Hong Kong	6	0.4%
16	Cyprus	4	0.3%
17	Bangladesh	4	0.3%
18	Russia	4	0.3%
19	Spain	3	0.2%
20	United Kingdom	3	0.2%
21	Colombia	3	0.2%
22	Ireland	3	0.2%
23	Iran, Islamic Republic of	2	0.1%
24	Chile	2	0.1%
25	Brazil	2	0.1%
26	Argentina	2	0.1%
27	Armenia	2	0.1%
28	South Africa	2	0.1%
29	Portugal	1	0.1%
30	Sweden	1	0.1%
31	Ukraine	1	0.1%