Rank	Countries/Territories	Count	Percent
1	United States	447	40%
2	China	368	32.9%
3	Germany	89	8%
4	France	45	4%
5	Japan	23	2.1%
6	Singapore	14	1.3%
7	United Kingdom	13	1.2%
8	Korea, Republic of	12	1.1%
9	Netherlands	10	0.9%
10	Taiwan	8	0.7%
11	Thailand	8	0.7%
12	Ireland	8	0.7%
13	Australia	8	0.7%
14	Cyprus	7	0.6%
15	India	7	0.6%
16	Italy	7	0.6%
17	Argentina	6	0.5%
18	Brazil	5	0.4%
19	Russia	5	0.4%
20	Romania	4	0.4%
21	Ukraine	4	0.4%
22	Canada	4	0.4%
23	Israel	3	0.3%
24	Malaysia	2	0.2%
25	Iran, Islamic Republic of	2	0.2%
26	Bangladesh	2	0.2%
27	Colombia	2	0.2%
28	Denmark	1	0.1%
29	Turkey	1	0.1%
30	Spain	1	0.1%
31	Switzerland	1	0.1%