Rank	Countries/Territories	Count	Percent
1	United States	564	49.2%
2	China	262	22.8%
3	Germany	123	10.7%
4	France	28	2.4%
5	Canada	26	2.3%
6	Japan	23	2%
7	Iran, Islamic Republic of	14	1.2%
8	Singapore	13	1.1%
9	Netherlands	11	1%
10	Korea, Republic of	9	0.8%
11	Cyprus	9	0.8%
12	Australia	6	0.5%
13	Ukraine	6	0.5%
14	India	5	0.4%
15	Hong Kong	4	0.3%
16	Argentina	4	0.3%
17	United Kingdom	4	0.3%
18	Spain	4	0.3%
19	Switzerland	4	0.3%
20	Norway	3	0.3%
21	Mexico	3	0.3%
22	Ireland	3	0.3%
23	Colombia	2	0.2%
24	Belgium	2	0.2%
25	Chile	2	0.2%
26	Mongolia	2	0.2%
27	Malaysia	2	0.2%
28	Sweden	2	0.2%
29	Venezuela, Bolivarian Republic of	2	0.2%
30	Viet Nam	2	0.2%
31	Russia	1	0.1%
32	Brazil	1	0.1%
33	Libya	1	0.1%