Rank	Countries/Territories	Count	Percent
1	United States	305	44.6%
2	China	220	32.2%
3	Germany	42	6.1%
4	Singapore	13	1.9%
5	United Kingdom	12	1.8%
6	Japan	11	1.6%
7	Netherlands	11	1.6%
8	Canada	9	1.3%
9	Sweden	9	1.3%
10	Romania	7	1%
11	France	6	0.9%
12	Iran, Islamic Republic of	4	0.6%
13	Ireland	4	0.6%
14	Korea, Republic of	4	0.6%
15	Russia	4	0.6%
16	Malaysia	3	0.4%
17	Cyprus	3	0.4%
18	Australia	2	0.3%
19	India	2	0.3%
20	Mexico	2	0.3%
21	Nigeria	2	0.3%
22	Peru	2	0.3%
23	Spain	2	0.3%
24	Sri Lanka	2	0.3%
25	Thailand	1	0.1%
26	Belgium	1	0.1%
27	Brazil	1	0.1%