Rank	Countries/Territories	Count	Percent
1	United States	315	37.3%
2	China	156	18.5%
3	Germany	145	17.2%
4	France	28	3.3%
5	Japan	19	2.2%
6	Korea, Republic of	16	1.9%
7	Netherlands	16	1.9%
8	India	13	1.5%
9	Canada	13	1.5%
10	Ireland	11	1.3%
11	Spain	10	1.2%
12	Sweden	9	1.1%
13	Brazil	9	1.1%
14	Egypt	8	0.9%
15	Portugal	8	0.9%
16	Russia	8	0.9%
17	Italy	6	0.7%
18	United Kingdom	6	0.7%
19	Hong Kong	6	0.7%
20	Iran, Islamic Republic of	5	0.6%
21	Cyprus	4	0.5%
22	Switzerland	4	0.5%
23	Taiwan	4	0.5%
24	Singapore	4	0.5%
25	Chile	3	0.4%
26	Argentina	2	0.2%
27	Australia	2	0.2%
28	Austria	2	0.2%
29	Hungary	2	0.2%
30	Greece	2	0.2%
31	New Zealand	2	0.2%
32	Philippines	2	0.2%
33	Ukraine	1	0.1%
34	Slovenia	1	0.1%
35	Mexico	1	0.1%
36	Czech Republic	1	0.1%
37	Colombia	1	0.1%