Rank	Countries/Territories	Count	Percent
1	United States	439	39.6%
2	China	278	25.1%
3	Germany	140	12.6%
4	United Kingdom	41	3.7%
5	France	31	2.8%
6	Iran, Islamic Republic of	28	2.5%
7	Russia	24	2.2%
8	Netherlands	17	1.5%
9	Turkey	13	1.2%
10	Spain	10	0.9%
11	Japan	9	0.8%
12	Singapore	8	0.7%
13	Canada	7	0.6%
14	Lithuania	6	0.5%
15	Hong Kong	5	0.5%
16	Cyprus	5	0.5%
17	Australia	4	0.4%
18	India	4	0.4%
19	Poland	4	0.4%
20	Romania	4	0.4%
21	Bulgaria	3	0.3%
22	Italy	3	0.3%
23	Ukraine	2	0.2%
24	Bangladesh	2	0.2%
25	Denmark	2	0.2%
26	Indonesia	2	0.2%
27	Slovakia	2	0.2%
28	Oman	2	0.2%
29	Korea, Republic of	2	0.2%
30	Latvia	2	0.2%
31	Jordan	1	0.1%
32	Nepal	1	0.1%
33	Sweden	1	0.1%
34	Tunisia	1	0.1%
35	Uganda	1	0.1%
36	Ireland	1	0.1%
37	Iceland	1	0.1%
38	Egypt	1	0.1%
39	Argentina	1	0.1%