Rank	Countries/Territories	Count	Percent
1	United States	290	40.5%
2	China	229	32%
3	Germany	37	5.2%
4	Iran, Islamic Republic of	22	3.1%
5	Japan	17	2.4%
6	Singapore	14	2%
7	Korea, Republic of	11	1.5%
8	Netherlands	11	1.5%
9	Australia	8	1.1%
10	France	8	1.1%
11	Russia	7	1%
12	Canada	7	1%
13	Ireland	7	1%
14	Cyprus	6	0.8%
15	Hong Kong	4	0.6%
16	India	4	0.6%
17	Malawi	4	0.6%
18	Mongolia	4	0.6%
19	Macao	3	0.4%
20	Belgium	3	0.4%
21	Bulgaria	2	0.3%
22	Poland	2	0.3%
23	Portugal	2	0.3%
24	South Africa	2	0.3%
25	United Kingdom	2	0.3%
26	Taiwan	2	0.3%
27	Turkey	1	0.1%
28	Ukraine	1	0.1%
29	Spain	1	0.1%
30	Sweden	1	0.1%
31	Romania	1	0.1%
32	Colombia	1	0.1%
33	Israel	1	0.1%
34	Norway	1	0.1%