Rank	Countries/Territories	Count	Percent
1	United States	326	43.1%
2	China	223	29.5%
3	Germany	113	14.9%
4	India	14	1.9%
5	Poland	12	1.6%
6	Singapore	12	1.6%
7	Thailand	12	1.6%
8	Canada	7	0.9%
9	Cyprus	5	0.7%
10	Netherlands	5	0.7%
11	Taiwan	4	0.5%
12	Ireland	4	0.5%
13	Japan	4	0.5%
14	Australia	2	0.3%
15	Mexico	2	0.3%
16	South Africa	2	0.3%
17	Norway	2	0.3%
18	Philippines	2	0.3%
19	Romania	1	0.1%
20	Russia	1	0.1%
21	France	1	0.1%
22	Korea, Republic of	1	0.1%
23	Luxembourg	1	0.1%