Rank	Countries/Territories	Count	Percent
1	United States	217	37.3%
2	China	124	21.3%
3	Germany	45	7.7%
4	Netherlands	27	4.6%
5	United Kingdom	16	2.8%
6	India	15	2.6%
7	Bulgaria	10	1.7%
8	France	9	1.5%
9	Singapore	9	1.5%
10	Switzerland	9	1.5%
11	Canada	8	1.4%
12	Brazil	7	1.2%
13	Iran, Islamic Republic of	7	1.2%
14	Japan	7	1.2%
15	Korea, Republic of	6	1%
16	Italy	6	1%
17	Australia	5	0.9%
18	Serbia	5	0.9%
19	Ireland	4	0.7%
20	Greece	4	0.7%
21	Poland	4	0.7%
22	Honduras	3	0.5%
23	Cyprus	3	0.5%
24	Sweden	3	0.5%
25	Turkey	2	0.3%
26	Bosnia and Herzegovina	2	0.3%
27	Senegal	2	0.3%
28	Norway	2	0.3%
29	Peru	2	0.3%
30	Ethiopia	2	0.3%
31	Kazakhstan	1	0.2%
32	Libya	1	0.2%
33	Luxembourg	1	0.2%
34	Malaysia	1	0.2%
35	Mexico	1	0.2%
36	New Zealand	1	0.2%
37	Nigeria	1	0.2%
38	Portugal	1	0.2%
39	Saudi Arabia	1	0.2%
40	Argentina	1	0.2%
41	Denmark	1	0.2%
42	Hungary	1	0.2%
43	Israel	1	0.2%
44	Ukraine	1	0.2%
45	Thailand	1	0.2%
46	Spain	1	0.2%