Rank	Countries/Territories	Count	Percent
1	United States	278	45.9%
2	China	146	24.1%
3	Germany	86	14.2%
4	Japan	26	4.3%
5	Mexico	16	2.6%
6	Singapore	11	1.8%
7	India	6	1%
8	Hong Kong	5	0.8%
9	Netherlands	5	0.8%
10	Ireland	4	0.7%
11	Cyprus	4	0.7%
12	France	3	0.5%
13	Argentina	2	0.3%
14	Indonesia	2	0.3%
15	Italy	2	0.3%
16	South Africa	2	0.3%
17	Canada	2	0.3%
18	Taiwan	1	0.2%
19	Ukraine	1	0.2%
20	Korea, Republic of	1	0.2%
21	Norway	1	0.2%
22	Philippines	1	0.2%
23	Australia	1	0.2%