Rank	Countries/Territories	Count	Percent
1	United States	233	25.4%
2	China	189	20.6%
3	Japan	116	12.6%
4	Germany	88	9.6%
5	Singapore	45	4.9%
6	United Kingdom	31	3.4%
7	Bulgaria	23	2.5%
8	Netherlands	16	1.7%
9	Sweden	15	1.6%
10	India	14	1.5%
11	Austria	14	1.5%
12	Russia	12	1.3%
13		11	1.2%
14	Canada	9	1%
15	Ireland	8	0.9%
16	Viet Nam	8	0.9%
17	Australia	7	0.8%
18	Korea, Republic of	6	0.7%
19	Kenya	5	0.5%
20	Romania	5	0.5%
21	Brazil	5	0.5%
22	Argentina	5	0.5%
23	Denmark	5	0.5%
24	Spain	5	0.5%
25	Taiwan	3	0.3%
26	Cote D'ivoire	3	0.3%
27	France	3	0.3%
28	Hong Kong	3	0.3%
29	Ethiopia	2	0.2%
30	Finland	2	0.2%
31	Myanmar	2	0.2%
32	Nigeria	2	0.2%
33	Norway	2	0.2%
34	Pakistan	2	0.2%
35	Poland	2	0.2%
36	Lebanon	2	0.2%
37	Luxembourg	2	0.2%
38	Israel	2	0.2%
39	Thailand	2	0.2%
40	Turkey	2	0.2%
41	Ukraine	2	0.2%
42	Saudi Arabia	1	0.1%
43	Iran, Islamic Republic of	1	0.1%
44	Malaysia	1	0.1%
45	Greece	1	0.1%
46	Bangladesh	1	0.1%