Rank	Countries/Territories	Count	Percent
1	United States	328	46.6%
2	China	170	24.1%
3	Germany	38	5.4%
4	Japan	33	4.7%
5	India	24	3.4%
6	Korea, Republic of	16	2.3%
7	Malaysia	10	1.4%
8	Singapore	10	1.4%
9	Netherlands	8	1.1%
10	Russia	7	1%
11	United Kingdom	5	0.7%
12	Romania	4	0.6%
13	Turkey	4	0.6%
14	Australia	4	0.6%
15	Colombia	3	0.4%
16	Cyprus	3	0.4%
17	Denmark	3	0.4%
18	Ireland	3	0.4%
19	France	3	0.4%
20	Saudi Arabia	3	0.4%
21	Peru	3	0.4%
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	0.1%
28	Costa Rica	1	0.1%
29	Indonesia	1	0.1%
30	Iran, Islamic Republic of	1	0.1%
31	Israel	1	0.1%
32	Philippines	1	0.1%
33	Norway	1	0.1%
34	Malta	1	0.1%
35	Mexico	1	0.1%
36	Spain	1	0.1%
37	Sweden	1	0.1%
38	United Arab Emirates	1	0.1%