Rank	Countries/Territories	Count	Percent
1	United States	467	37%
2	China	457	36.2%
3	Germany	99	7.8%
4	Ireland	31	2.5%
5	Japan	22	1.7%
6	Canada	19	1.5%
7	Netherlands	19	1.5%
8	Singapore	18	1.4%
9	Russia	17	1.3%
10	Ukraine	14	1.1%
11	France	12	1%
12	Hong Kong	12	1%
13	United Kingdom	10	0.8%
14	Brazil	9	0.7%
15	Mexico	7	0.6%
16	Iran, Islamic Republic of	5	0.4%
17	Taiwan	5	0.4%
18	India	4	0.3%
19	Israel	3	0.2%
20	Cyprus	3	0.2%
21	Argentina	3	0.2%
22	Thailand	3	0.2%
23	Viet Nam	2	0.2%
24	Spain	2	0.2%
25	Australia	2	0.2%
26	Egypt	2	0.2%
27	Korea, Republic of	2	0.2%
28	Malaysia	2	0.2%
29	Switzerland	2	0.2%
30	Indonesia	1	0.1%
31	Chile	1	0.1%
32	Sweden	1	0.1%
33	Moldova, Republic of	1	0.1%
34	Mongolia	1	0.1%
35	Norway	1	0.1%
36	Portugal	1	0.1%
37	Turkey	1	0.1%
38	Turkmenistan	1	0.1%