Rank	Countries/Territories	Count	Percent
1	United States	332	49.6%
2	China	188	28.1%
3	Germany	50	7.5%
4	Netherlands	14	2.1%
5	France	11	1.6%
6	Mexico	9	1.3%
7	Singapore	7	1%
8	Korea, Republic of	7	1%
9	Mongolia	5	0.7%
10	United Kingdom	4	0.6%
11	India	4	0.6%
12	Canada	4	0.6%
13	Cyprus	4	0.6%
14	Japan	3	0.4%
15	Sri Lanka	3	0.4%
16	Libya	2	0.3%
17	Iraq	2	0.3%
18	Ireland	2	0.3%
19	Greece	2	0.3%
20	Hungary	2	0.3%
21	Croatia	2	0.3%
22	Australia	2	0.3%
23	Brazil	2	0.3%
24	Indonesia	1	0.1%
25	Iran, Islamic Republic of	1	0.1%
26	Lebanon	1	0.1%
27	Switzerland	1	0.1%
28	Turkey	1	0.1%
29	Pakistan	1	0.1%
30	Poland	1	0.1%
31	Saudi Arabia	1	0.1%