Rank	Countries/Territories	Count	Percent
1	United States	429	36.6%
2	China	261	22.3%
3	Germany	146	12.4%
4	Japan	52	4.4%
5	Russia	42	3.6%
6	Singapore	32	2.7%
7	India	30	2.6%
8	Netherlands	26	2.2%
9	France	20	1.7%
10	Iran, Islamic Republic of	19	1.6%
11	Canada	16	1.4%
12	Australia	11	0.9%
13	Korea, Republic of	10	0.9%
14	Argentina	9	0.8%
15	Thailand	8	0.7%
16	Italy	7	0.6%
17	Cyprus	5	0.4%
18	Mexico	4	0.3%
19	Portugal	4	0.3%
20	Romania	4	0.3%
21	Ukraine	4	0.3%
22	Sweden	3	0.3%
23	Latvia	3	0.3%
24	Bangladesh	3	0.3%
25	Ireland	3	0.3%
26	Israel	2	0.2%
27	Greece	2	0.2%
28	Hong Kong	2	0.2%
29	Brazil	2	0.2%
30	Macao	2	0.2%
31	Mongolia	2	0.2%
32	Norway	2	0.2%
33	United Kingdom	2	0.2%
34	Trinidad and Tobago	1	0.1%
35	Spain	1	0.1%
36	Jordan	1	0.1%
37	Bulgaria	1	0.1%
38	Dominican Republic	1	0.1%
39	Hungary	1	0.1%