Rank	Countries/Territories	Count	Percent
1	United States	428	45.7%
2	China	179	19.1%
3	Germany	113	12.1%
4	Mexico	36	3.8%
5	Japan	22	2.4%
6	France	18	1.9%
7	India	17	1.8%
8	Korea, Republic of	15	1.6%
9	Argentina	15	1.6%
10	Norway	12	1.3%
11	Australia	11	1.2%
12	Singapore	10	1.1%
13	United Kingdom	9	1%
14	Canada	9	1%
15	Cyprus	6	0.6%
16	Netherlands	5	0.5%
17	Russia	4	0.4%
18	Iran, Islamic Republic of	4	0.4%
19	Ecuador	3	0.3%
20	Spain	3	0.3%
21	Pakistan	3	0.3%
22	Mongolia	2	0.2%
23	Trinidad and Tobago	2	0.2%
24	Ukraine	2	0.2%
25	Ireland	2	0.2%
26	Malaysia	1	0.1%
27	Jordan	1	0.1%
28	Egypt	1	0.1%
29	Denmark	1	0.1%
30	Bulgaria	1	0.1%
31	Poland	1	0.1%