Rank	Countries/Territories	Count	Percent
1	United States	643	33.5%
2	China	615	32.1%
3	Germany	131	6.8%
4	India	62	3.2%
5	United Kingdom	46	2.4%
6	Japan	40	2.1%
7	Korea, Republic of	36	1.9%
8	Canada	36	1.9%
9	Portugal	31	1.6%
10	Bulgaria	30	1.6%
11	Netherlands	25	1.3%
12	France	23	1.2%
13	Argentina	17	0.9%
14	Pakistan	17	0.9%
15	Singapore	14	0.7%
16	Sweden	13	0.7%
17	Iran, Islamic Republic of	13	0.7%
18	Ireland	13	0.7%
19	Taiwan	10	0.5%
20	Mexico	9	0.5%
21	Greece	9	0.5%
22	Australia	8	0.4%
23	Belgium	8	0.4%
24	Turkey	8	0.4%
25	Poland	7	0.4%
26	Hong Kong	7	0.4%
27	Cyprus	5	0.3%
28	Russia	5	0.3%
29	Indonesia	3	0.2%
30	Denmark	3	0.2%
31	Colombia	3	0.2%
32	Spain	3	0.2%
33	Switzerland	2	0.1%
34	Peru	2	0.1%
35	Ukraine	2	0.1%
36	Chile	2	0.1%
37	Austria	2	0.1%
38	Czech Republic	2	0.1%
39	Georgia	2	0.1%
40	Saudi Arabia	2	0.1%
41	Serbia	1	0.1%
42	Israel	1	0.1%
43	Nigeria	1	0.1%
44	Monaco	1	0.1%
45	Mongolia	1	0.1%
46	Hungary	1	0.1%
47	Brazil	1	0.1%
48	Slovenia	1	0.1%