Rank	Countries/Territories	Count	Percent
1	United States	323	43.3%
2	China	197	26.4%
3	Germany	42	5.6%
4	Japan	17	2.3%
5	Netherlands	17	2.3%
6	Korea, Republic of	16	2.1%
7	India	15	2%
8	France	14	1.9%
9	Poland	14	1.9%
10	Czech Republic	13	1.7%
11	Canada	12	1.6%
12	United Kingdom	9	1.2%
13	Ireland	7	0.9%
14	Australia	5	0.7%
15	Cyprus	5	0.7%
16	Singapore	5	0.7%
17	Iran, Islamic Republic of	4	0.5%
18	Italy	3	0.4%
19	Indonesia	3	0.4%
20	Taiwan	3	0.4%
21	Turkey	3	0.4%
22	Russia	2	0.3%
23	Spain	2	0.3%
24	Denmark	2	0.3%
25	Bangladesh	2	0.3%
26	Bulgaria	2	0.3%
27	Argentina	2	0.3%
28	Egypt	1	0.1%
29	Hong Kong	1	0.1%
30	Sweden	1	0.1%
31	Romania	1	0.1%
32	Lithuania	1	0.1%
33	Philippines	1	0.1%
34	Ukraine	1	0.1%