Rank	Countries/Territories	Count	Percent
1	United States	572	45.7%
2	China	261	20.8%
3	Germany	101	8.1%
4	Japan	87	6.9%
5	Netherlands	30	2.4%
6	France	27	2.2%
7	Romania	22	1.8%
8	Singapore	19	1.5%
9	India	15	1.2%
10	United Kingdom	13	1%
11	Bulgaria	11	0.9%
12	Russia	11	0.9%
13	Canada	9	0.7%
14	Korea, Republic of	9	0.7%
15	Philippines	8	0.6%
16	Australia	7	0.6%
17	Argentina	4	0.3%
18	Cyprus	4	0.3%
19	Latvia	4	0.3%
20	Hong Kong	3	0.2%
21	Ireland	3	0.2%
22	Ukraine	3	0.2%
23	Poland	2	0.2%
24	Portugal	2	0.2%
25	Norway	2	0.2%
26	Slovenia	2	0.2%
27	Sweden	2	0.2%
28	Mauritius	2	0.2%
29	Mexico	2	0.2%
30	Afghanistan	2	0.2%
31	Austria	1	0.1%
32	Bangladesh	1	0.1%
33	Czech Republic	1	0.1%
34	Iran, Islamic Republic of	1	0.1%
35	Switzerland	1	0.1%
36	Taiwan	1	0.1%
37	South Africa	1	0.1%
38	Pakistan	1	0.1%
39	Puerto Rico	1	0.1%
40	Italy	1	0.1%
41	New Zealand	1	0.1%
42	Nigeria	1	0.1%
43	Viet Nam	1	0.1%