Rank	Countries/Territories	Count	Percent
1	United States	427	35.4%
2	China	227	18.8%
3	Ukraine	169	14%
4	Germany	97	8%
5	Japan	81	6.7%
6	Singapore	29	2.4%
7	France	24	2%
8	Netherlands	20	1.7%
9	Australia	15	1.2%
10	South Africa	14	1.2%
11	India	12	1%
12	Nigeria	11	0.9%
13	United Kingdom	7	0.6%
14	Iran, Islamic Republic of	7	0.6%
15	Korea, Republic of	7	0.6%
16	Hong Kong	6	0.5%
17	Cyprus	6	0.5%
18	Belgium	5	0.4%
19	Malaysia	5	0.4%
20	Turkey	5	0.4%
21	Spain	5	0.4%
22	Oman	4	0.3%
23	Italy	3	0.2%
24	Libya	2	0.2%
25	Canada	2	0.2%
26	Argentina	2	0.2%
27	Ghana	2	0.2%
28	Sweden	2	0.2%
29	Taiwan	2	0.2%
30	Uganda	2	0.2%
31	Senegal	2	0.2%
32	Romania	1	0.1%
33	Russia	1	0.1%
34	Norway	1	0.1%
35	Czech Republic	1	0.1%
36	New Zealand	1	0.1%