Rank	Countries/Territories	Count	Percent
1	United States	381	35.1%
2	China	308	28.4%
3	Germany	146	13.5%
4	Japan	50	4.6%
5	India	37	3.4%
6	Netherlands	21	1.9%
7		20	1.8%
8	Singapore	20	1.8%
9	France	19	1.8%
10	Canada	14	1.3%
11	Brazil	9	0.8%
12	Iran, Islamic Republic of	8	0.7%
13	Hong Kong	7	0.6%
14	Cyprus	5	0.5%
15	Sweden	5	0.5%
16	Switzerland	5	0.5%
17	Argentina	4	0.4%
18	Ireland	3	0.3%
19	Romania	3	0.3%
20	Spain	3	0.3%
21	Sri Lanka	2	0.2%
22	Peru	2	0.2%
23	Poland	2	0.2%
24	South Africa	2	0.2%
25	Korea, Republic of	2	0.2%
26	Egypt	2	0.2%
27	Australia	1	0.1%
28	Algeria	1	0.1%
29	Norway	1	0.1%
30	United Kingdom	1	0.1%
31	Slovakia	1	0.1%