Rank	Countries/Territories	Count	Percent
1	United States	425	40.7%
2	China	258	24.7%
3	Germany	105	10.1%
4	France	50	4.8%
5	Netherlands	30	2.9%
6	Singapore	21	2%
7	India	19	1.8%
8	United Kingdom	16	1.5%
9	Japan	12	1.2%
10	Spain	11	1.1%
11	Australia	11	1.1%
12	Argentina	9	0.9%
13	Indonesia	7	0.7%
14	Mexico	7	0.7%
15	Iran, Islamic Republic of	6	0.6%
16	Canada	6	0.6%
17	Cyprus	6	0.6%
18	South Africa	5	0.5%
19	Italy	4	0.4%
20	Malaysia	4	0.4%
21	Mongolia	3	0.3%
22	Denmark	3	0.3%
23	Belgium	3	0.3%
24	Ethiopia	3	0.3%
25	Algeria	2	0.2%
26	Russia	2	0.2%
27	Taiwan	2	0.2%
28	Turkey	2	0.2%
29	Ukraine	2	0.2%
30	Sri Lanka	1	0.1%
31	Switzerland	1	0.1%
32	Norway	1	0.1%
33	Georgia	1	0.1%
34	Bangladesh	1	0.1%
35	Estonia	1	0.1%
36	Finland	1	0.1%
37	Ireland	1	0.1%
38	Uruguay	1	0.1%