Rank	Countries/Territories	Count	Percent
1	United States	277	45.1%
2	China	147	23.9%
3	Germany	36	5.9%
4	Japan	31	5%
5	India	24	3.9%
6	Korea, Republic of	10	1.6%
7	Malaysia	10	1.6%
8	Singapore	10	1.6%
9	Netherlands	7	1.1%
10	Russia	6	1%
11	Turkey	4	0.7%
12	Romania	4	0.7%
13	Australia	4	0.7%
14	Colombia	3	0.5%
15	Cyprus	3	0.5%
16	Denmark	3	0.5%
17	Ireland	3	0.5%
18	France	3	0.5%
19	Saudi Arabia	3	0.5%
20	Peru	3	0.5%
21	United Kingdom	2	0.3%
22	Italy	2	0.3%
23	Ghana	2	0.3%
24	Egypt	2	0.3%
25	Bulgaria	2	0.3%
26	Canada	2	0.3%
27	Brazil	1	0.2%
28	Costa Rica	1	0.2%
29	Indonesia	1	0.2%
30	Iran, Islamic Republic of	1	0.2%
31	Israel	1	0.2%
32	United Arab Emirates	1	0.2%
33	Spain	1	0.2%
34	Sweden	1	0.2%
35	Philippines	1	0.2%
36	Norway	1	0.2%
37	Mexico	1	0.2%