Rank	Countries/Territories	Count	Percent
1	United States	538	46.9%
2	China	270	23.5%
3	Germany	145	12.6%
4	India	29	2.5%
5	Japan	25	2.2%
6	Singapore	14	1.2%
7	Switzerland	12	1%
8	Netherlands	12	1%
9	Ireland	11	1%
10	Korea, Republic of	10	0.9%
11	Cyprus	8	0.7%
12	Australia	7	0.6%
13	France	7	0.6%
14	Hong Kong	6	0.5%
15		6	0.5%
16	Taiwan	5	0.4%
17	Malaysia	4	0.3%
18	Chile	4	0.3%
19	Canada	3	0.3%
20	Ukraine	3	0.3%
21	United Kingdom	3	0.3%
22	Spain	3	0.3%
23	Sweden	3	0.3%
24	Mexico	2	0.2%
25	Mongolia	2	0.2%
26	Egypt	2	0.2%
27	Argentina	2	0.2%
28	Brazil	2	0.2%
29	Israel	2	0.2%
30	Italy	2	0.2%
31	Iran, Islamic Republic of	1	0.1%
32	Georgia	1	0.1%
33	Norway	1	0.1%
34	Romania	1	0.1%
35	Russia	1	0.1%