Rank	Countries/Territories	Count	Percent
1	United States	586	38.3%
2	China	448	29.3%
3	Germany	176	11.5%
4	Latvia	52	3.4%
5		38	2.5%
6	India	32	2.1%
7	France	31	2%
8	Japan	27	1.8%
9	Canada	21	1.4%
10	Norway	13	0.8%
11	Ireland	12	0.8%
12	Hong Kong	9	0.6%
13	Cyprus	8	0.5%
14	Netherlands	8	0.5%
15	Korea, Republic of	8	0.5%
16	United Kingdom	8	0.5%
17	Singapore	8	0.5%
18	Mexico	7	0.5%
19	Spain	6	0.4%
20	Iran, Islamic Republic of	5	0.3%
21	Iraq	5	0.3%
22	Colombia	3	0.2%
23	Australia	3	0.2%
24	Poland	3	0.2%
25	Russia	2	0.1%
26	Morocco	2	0.1%
27	Thailand	2	0.1%
28	Brazil	2	0.1%
29	Indonesia	2	0.1%
30	Argentina	1	0.1%
31	Tunisia	1	0.1%
32	Turkey	1	0.1%
33	Romania	1	0.1%