Rank	Countries/Territories	Count	Percent
1	United States	371	49.7%
2	China	219	29.3%
3	Germany	50	6.7%
4	Netherlands	14	1.9%
5	France	11	1.5%
6	Mexico	9	1.2%
7	Singapore	7	0.9%
8	Korea, Republic of	7	0.9%
9	Mongolia	5	0.7%
10	United Kingdom	4	0.5%
11	India	4	0.5%
12	Greece	4	0.5%
13	Canada	4	0.5%
14	Cyprus	4	0.5%
15	Japan	3	0.4%
16	Sri Lanka	3	0.4%
17	Libya	2	0.3%
18	Spain	2	0.3%
19	Iran, Islamic Republic of	2	0.3%
20	Iraq	2	0.3%
21	Ireland	2	0.3%
22	Hungary	2	0.3%
23	Croatia	2	0.3%
24	Albania	2	0.3%
25	Australia	2	0.3%
26	Brazil	2	0.3%
27	Indonesia	1	0.1%
28	Lebanon	1	0.1%
29	Switzerland	1	0.1%
30	Turkey	1	0.1%
31	South Africa	1	0.1%
32	Pakistan	1	0.1%
33	Poland	1	0.1%
34	Saudi Arabia	1	0.1%