Rank	Countries/Territories	Count	Percent
1	United States	528	37.6%
2	China	392	27.9%
3	Germany	148	10.5%
4	France	76	5.4%
5	Brazil	51	3.6%
6	Singapore	38	2.7%
7	Japan	25	1.8%
8	Norway	19	1.4%
9	Ukraine	16	1.1%
10	Netherlands	13	0.9%
11	Australia	13	0.9%
12	India	11	0.8%
13	Canada	9	0.6%
14	Cyprus	8	0.6%
15	Korea, Republic of	8	0.6%
16	Iran, Islamic Republic of	7	0.5%
17	United Kingdom	7	0.5%
18	Poland	6	0.4%
19	Argentina	5	0.4%
20	Latvia	4	0.3%
21	Malaysia	3	0.2%
22	Russia	3	0.2%
23	Switzerland	2	0.1%
24	Mongolia	2	0.1%
25	Ireland	2	0.1%
26	Israel	2	0.1%
27	Colombia	2	0.1%
28	Bangladesh	2	0.1%
29	Italy	1	0.1%
30	Viet Nam	1	0.1%
31	Spain	1	0.1%
32	Hong Kong	1	0.1%