Rank	Countries/Territories	Count	Percent
1	United States	567	41.8%
2	China	326	24%
3	Germany	152	11.2%
4	France	46	3.4%
5	Brazil	22	1.6%
6	Ireland	22	1.6%
7	Austria	19	1.4%
8	India	17	1.3%
9	Canada	16	1.2%
10	Iran, Islamic Republic of	14	1%
11	Japan	13	1%
12	Netherlands	13	1%
13		13	1%
14	Russia	9	0.7%
15	Cyprus	8	0.6%
16	Italy	7	0.5%
17	Korea, Republic of	7	0.5%
18	Kuwait	7	0.5%
19	Hong Kong	7	0.5%
20	United Kingdom	6	0.4%
21	Mexico	6	0.4%
22	Argentina	6	0.4%
23	Indonesia	5	0.4%
24	Australia	4	0.3%
25	Portugal	4	0.3%
26	Romania	4	0.3%
27	Singapore	4	0.3%
28	Jamaica	3	0.2%
29	Mongolia	2	0.1%
30	Norway	2	0.1%
31	Lithuania	2	0.1%
32	Bulgaria	2	0.1%
33	Guatemala	2	0.1%
34	Denmark	2	0.1%
35	Ukraine	2	0.1%
36	Viet Nam	2	0.1%
37	Yemen	2	0.1%
38	Uruguay	1	0.1%
39	Sweden	1	0.1%
40	Switzerland	1	0.1%
41	Thailand	1	0.1%
42	Tunisia	1	0.1%
43	Egypt	1	0.1%
44	Chile	1	0.1%
45	Colombia	1	0.1%
46	Iraq	1	0.1%
47	Israel	1	0.1%
48	Philippines	1	0.1%