Rank	Countries/Territories	Count	Percent
1	United States	330	40.4%
2	China	189	23.1%
3	Germany	59	7.2%
4	India	48	5.9%
5	France	27	3.3%
6	Canada	25	3.1%
7	Argentina	13	1.6%
8	Netherlands	13	1.6%
9	Turkey	10	1.2%
10		10	1.2%
11	Ireland	9	1.1%
12	Australia	8	1%
13	Serbia	8	1%
14	Japan	7	0.9%
15	Italy	6	0.7%
16	Romania	5	0.6%
17	Russia	4	0.5%
18	Mexico	4	0.5%
19	United Kingdom	4	0.5%
20	Greece	4	0.5%
21	Mongolia	3	0.4%
22	Malaysia	2	0.2%
23	Saudi Arabia	2	0.2%
24	New Zealand	2	0.2%
25	Norway	2	0.2%
26	Singapore	2	0.2%
27	Slovakia	2	0.2%
28	Slovenia	2	0.2%
29	South Africa	2	0.2%
30	Sudan	2	0.2%
31	Hong Kong	2	0.2%
32	Iran, Islamic Republic of	2	0.2%
33	Iraq	2	0.2%
34	Belgium	2	0.2%
35	Bangladesh	1	0.1%
36	Cyprus	1	0.1%
37	Israel	1	0.1%
38	Hungary	1	0.1%
39	Ukraine	1	0.1%