Rank	Countries/Territories	Count	Percent
1	United States	578	45.4%
2	China	221	17.4%
3	Japan	88	6.9%
4	Germany	62	4.9%
5	Indonesia	52	4.1%
6	United Kingdom	51	4%
7	Singapore	37	2.9%
8	France	24	1.9%
9	Canada	24	1.9%
10	Australia	14	1.1%
11	Netherlands	14	1.1%
12	Iran, Islamic Republic of	12	0.9%
13	India	9	0.7%
14	South Africa	9	0.7%
15	Brazil	8	0.6%
16	Nigeria	6	0.5%
17	Pakistan	5	0.4%
18	Poland	5	0.4%
19	Ghana	5	0.4%
20	Ireland	5	0.4%
21	Barbados	4	0.3%
22	Philippines	4	0.3%
23	Sweden	4	0.3%
24	Korea, Republic of	4	0.3%
25	Malaysia	3	0.2%
26	Switzerland	3	0.2%
27	Ukraine	3	0.2%
28	Romania	3	0.2%
29	Norway	2	0.2%
30	Denmark	2	0.2%
31	Kenya	2	0.2%
32	Hong Kong	2	0.2%
33	Ecuador	1	0.1%
34	Ethiopia	1	0.1%
35	Cyprus	1	0.1%
36	New Zealand	1	0.1%
37	Mexico	1	0.1%
38	Malawi	1	0.1%
39	Russia	1	0.1%
40	Slovakia	1	0.1%