Rank	Countries/Territories	Count	Percent
1	United States	719	38.4%
2	China	519	27.7%
3	Germany	199	10.6%
4	France	76	4.1%
5	Japan	66	3.5%
6	Canada	42	2.2%
7	Bulgaria	35	1.9%
8	Netherlands	31	1.7%
9	Russia	31	1.7%
10	Singapore	22	1.2%
11	United Kingdom	16	0.9%
12	Spain	14	0.7%
13	Cyprus	14	0.7%
14	Hong Kong	7	0.4%
15	India	7	0.4%
16	Colombia	6	0.3%
17	Switzerland	6	0.3%
18	Italy	5	0.3%
19	South Africa	4	0.2%
20	Australia	4	0.2%
21	Ukraine	4	0.2%
22	Taiwan	3	0.2%
23	Argentina	3	0.2%
24	Brazil	3	0.2%
25	Indonesia	3	0.2%
26	Iran, Islamic Republic of	3	0.2%
27	Norway	3	0.2%
28	Malaysia	3	0.2%
29	Israel	2	0.1%
30	Korea, Republic of	2	0.1%
31	Latvia	2	0.1%
32	Philippines	2	0.1%
33	Denmark	2	0.1%
34	Cote D'ivoire	2	0.1%
35	Bangladesh	2	0.1%
36	Sweden	2	0.1%
37	Austria	1	0.1%
38	Czech Republic	1	0.1%
39	Ireland	1	0.1%
40	Pakistan	1	0.1%
41	Saudi Arabia	1	0.1%
42	Serbia	1	0.1%
43	Lithuania	1	0.1%
44	Mongolia	1	0.1%