Rank	Countries/Territories	Count	Percent
1	United States	577	31.8%
2	China	530	29.2%
3	Germany	229	12.6%
4	India	70	3.9%
5	Russia	59	3.2%
6	Egypt	43	2.4%
7	Japan	33	1.8%
8	Netherlands	32	1.8%
9	Korea, Republic of	23	1.3%
10	Canada	20	1.1%
11	Turkey	17	0.9%
12	Romania	16	0.9%
13	Greece	16	0.9%
14	Cyprus	14	0.8%
15	Switzerland	12	0.7%
16	Singapore	11	0.6%
17	Nepal	10	0.6%
18	Hong Kong	9	0.5%
19	Ireland	8	0.4%
20	Czech Republic	8	0.4%
21	Brazil	8	0.4%
22	Pakistan	8	0.4%
23	France	7	0.4%
24	Australia	6	0.3%
25	Iran, Islamic Republic of	6	0.3%
26	Latvia	5	0.3%
27	Libya	5	0.3%
28	Mexico	4	0.2%
29	Saudi Arabia	4	0.2%
30	Thailand	4	0.2%
31	United Kingdom	4	0.2%
32	Peru	2	0.1%
33	Philippines	2	0.1%
34	Jordan	2	0.1%
35	Italy	2	0.1%
36	Hungary	2	0.1%
37	Argentina	2	0.1%
38	Bulgaria	1	0.1%
39	Spain	1	0.1%
40	Sweden	1	0.1%
41	Taiwan	1	0.1%
42	Ukraine	1	0.1%
43	Uzbekistan	1	0.1%