Rank	Countries/Territories	Count	Percent
1	United States	346	35.3%
2	China	268	27.3%
3	Germany	123	12.5%
4	Korea, Republic of	42	4.3%
5	India	34	3.5%
6	Japan	34	3.5%
7	Ireland	11	1.1%
8		11	1.1%
9	Switzerland	11	1.1%
10	Lithuania	10	1%
11	Moldova, Republic of	10	1%
12	Russia	10	1%
13	Netherlands	7	0.7%
14	Canada	7	0.7%
15	Jordan	6	0.6%
16	Hong Kong	6	0.6%
17	Singapore	6	0.6%
18	Cyprus	5	0.5%
19	Malaysia	4	0.4%
20	Spain	4	0.4%
21	Romania	3	0.3%
22	Australia	3	0.3%
23	Italy	3	0.3%
24	Austria	2	0.2%
25	Argentina	2	0.2%
26	France	2	0.2%
27	Chile	2	0.2%
28	Ukraine	2	0.2%
29	Paraguay	2	0.2%
30	Serbia	2	0.2%
31	Slovakia	1	0.1%
32	Uruguay	1	0.1%
33	Iran, Islamic Republic of	1	0.1%