Rank	Countries/Territories	Count	Percent
1	United States	456	40.4%
2	China	361	32%
3	Germany	103	9.1%
4	Japan	38	3.4%
5	France	33	2.9%
6		30	2.7%
7	Singapore	13	1.2%
8	Switzerland	10	0.9%
9	Netherlands	10	0.9%
10	Canada	10	0.9%
11	India	9	0.8%
12	Cyprus	8	0.7%
13	Australia	8	0.7%
14	United Kingdom	8	0.7%
15	South Africa	5	0.4%
16	Argentina	4	0.4%
17	Hong Kong	3	0.3%
18	Iran, Islamic Republic of	2	0.2%
19	Bangladesh	2	0.2%
20	Brazil	2	0.2%
21	Spain	2	0.2%
22	Taiwan	2	0.2%
23	Thailand	2	0.2%
24	Korea, Republic of	2	0.2%
25	Malaysia	1	0.1%
26	Mongolia	1	0.1%
27	Bulgaria	1	0.1%
28	Ireland	1	0.1%
29	Israel	1	0.1%