Rank	Countries/Territories	Count	Percent
1	United States	518	39.9%
2	China	269	20.7%
3	Germany	139	10.7%
4	India	51	3.9%
5	Brazil	49	3.8%
6	France	28	2.2%
7	Netherlands	26	2%
8	Japan	25	1.9%
9	Canada	20	1.5%
10	Romania	17	1.3%
11		11	0.8%
12	Italy	11	0.8%
13	Spain	9	0.7%
14	Portugal	8	0.6%
15	Iran, Islamic Republic of	8	0.6%
16	Korea, Republic of	6	0.5%
17	Nepal	6	0.5%
18	Sweden	6	0.5%
19	Poland	5	0.4%
20	Ireland	5	0.4%
21	Indonesia	5	0.4%
22	Cyprus	5	0.4%
23	Greece	4	0.3%
24	Angola	4	0.3%
25	Australia	4	0.3%
26	Israel	4	0.3%
27	Morocco	4	0.3%
28	Russia	4	0.3%
29	Thailand	4	0.3%
30	Ukraine	3	0.2%
31	United Kingdom	3	0.2%
32	Singapore	3	0.2%
33	Austria	3	0.2%
34	Bangladesh	3	0.2%
35	Belgium	2	0.2%
36	Colombia	2	0.2%
37	Lebanon	2	0.2%
38	Slovenia	2	0.2%
39	South Africa	2	0.2%
40	Switzerland	2	0.2%
41	Turkey	2	0.2%
42	Viet Nam	2	0.2%
43	Taiwan	1	0.1%
44	Malaysia	1	0.1%
45	Mongolia	1	0.1%
46	Norway	1	0.1%
47	Hong Kong	1	0.1%
48	Denmark	1	0.1%
49	Ecuador	1	0.1%
50	Egypt	1	0.1%
51	Estonia	1	0.1%
52	Argentina	1	0.1%
53	Chile	1	0.1%