Rank	Countries/Territories	Count	Percent
1	United States	472	42.8%
2	China	402	36.5%
3	Germany	55	5%
4	Japan	19	1.7%
5	United Kingdom	15	1.4%
6	Singapore	13	1.2%
7	India	13	1.2%
8	Netherlands	12	1.1%
9	Spain	9	0.8%
10	Romania	9	0.8%
11	Russia	9	0.8%
12	Sweden	9	0.8%
13	Canada	9	0.8%
14	France	8	0.7%
15	Iran, Islamic Republic of	7	0.6%
16	Cyprus	5	0.5%
17	Australia	5	0.5%
18	Ireland	4	0.4%
19	Korea, Republic of	4	0.4%
20	Taiwan	4	0.4%
21	Thailand	3	0.3%
22	Malaysia	3	0.3%
23	Mexico	2	0.2%
24	Sri Lanka	2	0.2%
25	Nigeria	2	0.2%
26	Peru	2	0.2%
27	Philippines	2	0.2%
28	Bangladesh	1	0.1%
29	Belgium	1	0.1%
30	Brazil	1	0.1%