Rank	Countries/Territories	Count	Percent
1	United States	249	32.4%
2	China	233	30.3%
3	Germany	109	14.2%
4	Canada	21	2.7%
5	Singapore	21	2.7%
6	Netherlands	15	2%
7	Korea, Republic of	12	1.6%
8	United Kingdom	11	1.4%
9	Poland	9	1.2%
10	France	9	1.2%
11	Hong Kong	9	1.2%
12	Japan	8	1%
13	Russia	7	0.9%
14	Iran, Islamic Republic of	6	0.8%
15	Brazil	6	0.8%
16	Cyprus	5	0.7%
17	India	5	0.7%
18	Australia	4	0.5%
19	Turkey	4	0.5%
20	Spain	3	0.4%
21	Portugal	2	0.3%
22	Norway	2	0.3%
23	Ukraine	2	0.3%
24	Thailand	2	0.3%
25	Ireland	2	0.3%
26	Italy	2	0.3%
27	Malaysia	2	0.3%
28	Mexico	2	0.3%
29	Bosnia and Herzegovina	1	0.1%
30	Argentina	1	0.1%
31	Ethiopia	1	0.1%
32	Chile	1	0.1%
33	Viet Nam	1	0.1%
34	Switzerland	1	0.1%
35	Taiwan	1	0.1%