Rank	Countries/Territories	Count	Percent
1	United States	618	44.7%
2	China	333	24.1%
3	Germany	176	12.7%
4	Japan	34	2.5%
5	Latvia	34	2.5%
6	France	21	1.5%
7	Ukraine	19	1.4%
8	Netherlands	19	1.4%
9	Singapore	16	1.2%
10	Taiwan	15	1.1%
11	Switzerland	13	0.9%
12	Canada	11	0.8%
13	Korea, Republic of	10	0.7%
14	Australia	9	0.7%
15	India	8	0.6%
16	Bulgaria	7	0.5%
17	United Kingdom	6	0.4%
18	South Africa	6	0.4%
19	Hong Kong	5	0.4%
20	New Zealand	3	0.2%
21	Nigeria	2	0.1%
22	Peru	2	0.1%
23	Sweden	2	0.1%
24	Italy	2	0.1%
25	Argentina	2	0.1%
26	Brazil	2	0.1%
27	Colombia	2	0.1%
28	Cyprus	2	0.1%
29	Malaysia	1	0.1%
30	Mongolia	1	0.1%
31	Thailand	1	0.1%
32	Viet Nam	1	0.1%