Rank	Countries/Territories	Count	Percent
1	United States	538	42.5%
2	China	319	25.2%
3	Germany	111	8.8%
4	Japan	44	3.5%
5	India	26	2.1%
6	Canada	23	1.8%
7	Australia	20	1.6%
8	Ukraine	20	1.6%
9	Spain	15	1.2%
10	Cyprus	13	1%
11	France	12	0.9%
12	Netherlands	11	0.9%
13	Singapore	10	0.8%
14	Saudi Arabia	8	0.6%
15	Turkey	8	0.6%
16	United Kingdom	7	0.6%
17	Russia	7	0.6%
18	Iran, Islamic Republic of	7	0.6%
19	Finland	7	0.6%
20	Italy	6	0.5%
21	Korea, Republic of	6	0.5%
22	Denmark	4	0.3%
23	United Arab Emirates	4	0.3%
24	Ireland	3	0.2%
25	Kazakhstan	3	0.2%
26	Hong Kong	3	0.2%
27	Mexico	3	0.2%
28	Pakistan	3	0.2%
29	Romania	3	0.2%
30	Poland	3	0.2%
31	Portugal	3	0.2%
32	Philippines	2	0.2%
33	Mongolia	2	0.2%
34	Egypt	2	0.2%
35	Taiwan	2	0.2%
36	Yemen	1	0.1%
37	Argentina	1	0.1%
38	Georgia	1	0.1%
39	Kenya	1	0.1%
40	Malaysia	1	0.1%
41	Norway	1	0.1%
42	Qatar	1	0.1%
43	Serbia	1	0.1%