Rank	Countries/Territories	Count	Percent
1	United States	792	39.4%
2	China	592	29.5%
3	Germany	183	9.1%
4	Canada	115	5.7%
5	France	73	3.6%
6		52	2.6%
7	United Kingdom	34	1.7%
8	Netherlands	27	1.3%
9	Japan	23	1.1%
10	Singapore	14	0.7%
11	Switzerland	12	0.6%
12	Romania	12	0.6%
13	Cyprus	9	0.4%
14	Australia	7	0.3%
15	Taiwan	7	0.3%
16	Latvia	6	0.3%
17	Hong Kong	6	0.3%
18	Ukraine	5	0.2%
19	South Africa	4	0.2%
20	India	4	0.2%
21	Ireland	4	0.2%
22	Argentina	4	0.2%
23	Italy	3	0.1%
24	Indonesia	2	0.1%
25	Iran, Islamic Republic of	2	0.1%
26	Hungary	2	0.1%
27	Bangladesh	2	0.1%
28	Belgium	2	0.1%
29	Mexico	2	0.1%
30	Russia	2	0.1%
31	Philippines	1	0%
32	Poland	1	0%
33	Moldova, Republic of	1	0%
34	Mongolia	1	0%
35	Spain	1	0%
36	Turkey	1	0%
37	Korea, Republic of	1	0%