Rank	Countries/Territories	Count	Percent
1	United States	521	37.8%
2	China	436	31.6%
3	Germany	180	13%
4	France	81	5.9%
5	Japan	28	2%
6	Singapore	18	1.3%
7	Ukraine	18	1.3%
8	Canada	16	1.2%
9	Korea, Republic of	11	0.8%
10	United Kingdom	8	0.6%
11	Netherlands	7	0.5%
12	Latvia	7	0.5%
13	Hong Kong	6	0.4%
14	Taiwan	6	0.4%
15	India	5	0.4%
16	Australia	5	0.4%
17	Cyprus	5	0.4%
18	Argentina	3	0.2%
19	Bangladesh	2	0.1%
20	Egypt	2	0.1%
21	Iran, Islamic Republic of	2	0.1%
22	Malaysia	2	0.1%
23	Turkey	2	0.1%
24	Spain	2	0.1%
25	Poland	2	0.1%
26	Italy	2	0.1%
27	Russia	1	0.1%
28	Ireland	1	0.1%
29	Indonesia	1	0.1%