Rank	Countries/Territories	Count	Percent
1	United States	428	33.4%
2	China	260	20.3%
3	Iran, Islamic Republic of	128	10%
4	Germany	103	8%
5	India	84	6.6%
6	Ukraine	43	3.4%
7	Netherlands	31	2.4%
8	Japan	29	2.3%
9	Canada	22	1.7%
10	Ireland	15	1.2%
11	Hong Kong	14	1.1%
12	Korea, Republic of	13	1%
13	France	11	0.9%
14	Turkey	9	0.7%
15	Russia	9	0.7%
16	Singapore	8	0.6%
17	Egypt	7	0.5%
18	South Africa	6	0.5%
19	Saudi Arabia	5	0.4%
20	Australia	5	0.4%
21	Algeria	4	0.3%
22	Cyprus	4	0.3%
23	Czech Republic	4	0.3%
24	Hungary	4	0.3%
25	Argentina	3	0.2%
26	Tajikistan	3	0.2%
27	Pakistan	3	0.2%
28	Portugal	3	0.2%
29	United Kingdom	3	0.2%
30	Uzbekistan	3	0.2%
31	Jordan	2	0.2%
32	Kazakhstan	2	0.2%
33	Sri Lanka	2	0.2%
34	Azerbaijan	2	0.2%
35	Brazil	2	0.2%
36	Bulgaria	1	0.1%
37	Austria	1	0.1%
38	Italy	1	0.1%
39	Spain	1	0.1%
40	Nigeria	1	0.1%
41	Romania	1	0.1%
42	Philippines	1	0.1%