Rank	Countries/Territories	Count	Percent
1	United States	865	56.4%
2	China	325	21.2%
3	Germany	95	6.2%
4	Norway	37	2.4%
5	India	30	2%
6	France	28	1.8%
7	Canada	21	1.4%
8	Hong Kong	14	0.9%
9	Netherlands	14	0.9%
10	Turkey	13	0.8%
11	Japan	12	0.8%
12	Colombia	8	0.5%
13	Sweden	8	0.5%
14	Iran, Islamic Republic of	8	0.5%
15	Singapore	7	0.5%
16	Australia	6	0.4%
17	Cyprus	5	0.3%
18	Argentina	4	0.3%
19	Mongolia	4	0.3%
20	Thailand	4	0.3%
21	Viet Nam	4	0.3%
22	United Kingdom	3	0.2%
23	South Africa	3	0.2%
24	Indonesia	3	0.2%
25	Ecuador	2	0.1%
26	Egypt	2	0.1%
27	Russia	2	0.1%
28	Peru	2	0.1%
29	Poland	2	0.1%
30	Romania	1	0.1%
31	Slovenia	1	0.1%
32	Morocco	1	0.1%
33	Mauritius	1	0.1%