Rank	Countries/Territories	Count	Percent
1	United States	242	31.1%
2	China	213	27.4%
3	Germany	91	11.7%
4	Netherlands	48	6.2%
5	Canada	24	3.1%
6	Iran, Islamic Republic of	18	2.3%
7	Bulgaria	18	2.3%
8	Japan	17	2.2%
9	Turkey	13	1.7%
10	Lithuania	8	1%
11	France	8	1%
12	Cyprus	7	0.9%
13	United Kingdom	7	0.9%
14	Latvia	6	0.8%
15	Egypt	6	0.8%
16	South Africa	5	0.6%
17	Philippines	5	0.6%
18	Nigeria	3	0.4%
19	Singapore	3	0.4%
20	Ukraine	3	0.4%
21	Australia	3	0.4%
22	India	3	0.4%
23	Indonesia	3	0.4%
24	Israel	3	0.4%
25	Korea, Republic of	2	0.3%
26	Belgium	2	0.3%
27	Argentina	2	0.3%
28	Estonia	2	0.3%
29	Taiwan	2	0.3%
30	Thailand	2	0.3%
31	Mauritius	2	0.3%
32	Morocco	2	0.3%
33	Romania	2	0.3%
34	Russia	1	0.1%
35	Poland	1	0.1%
36	Norway	1	0.1%