Rank	Countries/Territories	Count	Percent
1	United States	447	33.7%
2	China	254	19.2%
3	Ukraine	200	15.1%
4	Germany	106	8%
5	Japan	81	6.1%
6	Singapore	29	2.2%
7	France	27	2%
8	Netherlands	23	1.7%
9	Nigeria	23	1.7%
10	Australia	17	1.3%
11	India	16	1.2%
12	South Africa	14	1.1%
13	United Kingdom	11	0.8%
14	Iran, Islamic Republic of	7	0.5%
15	Korea, Republic of	7	0.5%
16	Hong Kong	6	0.5%
17	Cyprus	6	0.5%
18	Belgium	5	0.4%
19	Malaysia	5	0.4%
20	Taiwan	5	0.4%
21	Turkey	5	0.4%
22	Spain	5	0.4%
23	Oman	4	0.3%
24	Italy	3	0.2%
25	Ghana	2	0.2%
26	Libya	2	0.2%
27	Canada	2	0.2%
28	Argentina	2	0.2%
29	Uganda	2	0.2%
30	Senegal	2	0.2%
31	Sweden	2	0.2%
32	Norway	1	0.1%
33	New Zealand	1	0.1%
34	Romania	1	0.1%
35	Russia	1	0.1%
36	Czech Republic	1	0.1%
37	Egypt	1	0.1%