Rank	Countries/Territories	Count	Percent
1	United States	580	46.8%
2	China	240	19.4%
3	Germany	105	8.5%
4	France	40	3.2%
5	Netherlands	26	2.1%
6	Finland	26	2.1%
7		23	1.9%
8	Japan	21	1.7%
9	Canada	19	1.5%
10	Australia	18	1.5%
11	India	16	1.3%
12	Korea, Republic of	15	1.2%
13	Norway	12	1%
14	Cyprus	10	0.8%
15	Argentina	9	0.7%
16	Brazil	9	0.7%
17	Poland	9	0.7%
18	Sweden	9	0.7%
19	United Kingdom	7	0.6%
20	Senegal	6	0.5%
21	Denmark	5	0.4%
22	Indonesia	4	0.3%
23	Greece	4	0.3%
24	Chile	3	0.2%
25	Singapore	3	0.2%
26	Italy	3	0.2%
27	Switzerland	2	0.2%
28	Latvia	2	0.2%
29	Kazakhstan	2	0.2%
30	Ireland	2	0.2%
31	Bahrain	2	0.2%
32	Belgium	1	0.1%
33	Egypt	1	0.1%
34	Iran, Islamic Republic of	1	0.1%
35	Mongolia	1	0.1%
36	Peru	1	0.1%
37	Taiwan	1	0.1%
38	Russia	1	0.1%
39	Viet Nam	1	0.1%