Rank	Countries/Territories	Count	Percent
1	United States	497	38.8%
2	China	396	30.9%
3	Germany	95	7.4%
4	Japan	50	3.9%
5	Canada	32	2.5%
6	Romania	27	2.1%
7	Netherlands	21	1.6%
8	Singapore	20	1.6%
9	Norway	14	1.1%
10	France	14	1.1%
11	Cyprus	9	0.7%
12	India	8	0.6%
13	Slovenia	8	0.6%
14	Russia	8	0.6%
15	Brazil	7	0.5%
16	Korea, Republic of	7	0.5%
17	Australia	6	0.5%
18	Spain	6	0.5%
19	United Kingdom	6	0.5%
20	Mexico	5	0.4%
21	Ireland	5	0.4%
22	Ecuador	5	0.4%
23	Colombia	5	0.4%
24	Sweden	4	0.3%
25	Taiwan	3	0.2%
26	Iraq	3	0.2%
27	Belgium	3	0.2%
28	Argentina	2	0.2%
29	Greece	2	0.2%
30	Mongolia	2	0.2%
31	Poland	2	0.2%
32	Turkey	2	0.2%
33	Ukraine	2	0.2%
34	Switzerland	1	0.1%
35	Pakistan	1	0.1%
36	Latvia	1	0.1%
37	Malaysia	1	0.1%
38	Uzbekistan	1	0.1%