Rank	Countries/Territories	Count	Percent
1	United States	369	50.3%
2	China	123	16.8%
3	Germany	75	10.2%
4	Japan	21	2.9%
5	Netherlands	19	2.6%
6	France	17	2.3%
7	Switzerland	12	1.6%
8	Ukraine	11	1.5%
9	United Kingdom	9	1.2%
10	Canada	9	1.2%
11	Korea, Republic of	8	1.1%
12	Hong Kong	7	1%
13	Singapore	7	1%
14	Mexico	6	0.8%
15	India	6	0.8%
16	Brazil	6	0.8%
17	Australia	4	0.5%
18	Romania	4	0.5%
19	Peru	3	0.4%
20	Ireland	3	0.4%
21	Taiwan	3	0.4%
22	Ethiopia	2	0.3%
23	Iran, Islamic Republic of	2	0.3%
24	Lebanon	1	0.1%
25	Malaysia	1	0.1%
26	Cyprus	1	0.1%
27	Argentina	1	0.1%
28	New Zealand	1	0.1%
29	Pakistan	1	0.1%
30	Philippines	1	0.1%