Rank	Countries/Territories	Count	Percent
1	United States	674	50.3%
2	China	313	23.3%
3	Germany	151	11.3%
4	Canada	22	1.6%
5	France	18	1.3%
6	Netherlands	17	1.3%
7	India	15	1.1%
8	Switzerland	14	1%
9	Japan	13	1%
10	United Kingdom	11	0.8%
11	Singapore	10	0.7%
12	Czech Republic	10	0.7%
13	Ireland	9	0.7%
14	Australia	7	0.5%
15	Iran, Islamic Republic of	7	0.5%
16	Korea, Republic of	6	0.4%
17	Cyprus	6	0.4%
18	Argentina	5	0.4%
19	Hong Kong	5	0.4%
20	Taiwan	4	0.3%
21	Thailand	4	0.3%
22	Brazil	3	0.2%
23	Malaysia	2	0.1%
24	Indonesia	2	0.1%
25	Russia	2	0.1%
26	Peru	2	0.1%
27	Spain	2	0.1%
28	Sweden	2	0.1%
29	Ukraine	2	0.1%
30	Romania	1	0.1%
31	Turkey	1	0.1%
32	Honduras	1	0.1%