Rank	Countries/Territories	Count	Percent
1	United States	596	38.2%
2	China	444	28.4%
3	Germany	166	10.6%
4	Latvia	60	3.8%
5	Norway	51	3.3%
6	Korea, Republic of	49	3.1%
7	France	34	2.2%
8	India	28	1.8%
9	Japan	28	1.8%
10	Netherlands	24	1.5%
11	Singapore	12	0.8%
12	Taiwan	10	0.6%
13	Canada	8	0.5%
14	Australia	6	0.4%
15	Hong Kong	6	0.4%
16	Cyprus	4	0.3%
17	Bangladesh	4	0.3%
18	United Kingdom	4	0.3%
19	Russia	4	0.3%
20	Spain	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%