Rank	Countries/Territories	Count	Percent
1	United States	559	45.3%
2	China	352	28.5%
3	Germany	99	8%
4	France	34	2.8%
5	Japan	17	1.4%
6	Romania	17	1.4%
7	Switzerland	14	1.1%
8	Netherlands	14	1.1%
9	Canada	14	1.1%
10	Russia	12	1%
11	Bosnia and Herzegovina	11	0.9%
12	United Kingdom	11	0.9%
13	Singapore	8	0.6%
14	Viet Nam	7	0.6%
15	Italy	6	0.5%
16	Australia	6	0.5%
17	Bangladesh	6	0.5%
18	Cyprus	5	0.4%
19	Israel	4	0.3%
20	Thailand	4	0.3%
21	Korea, Republic of	4	0.3%
22	Malaysia	3	0.2%
23	Peru	3	0.2%
24	Ireland	3	0.2%
25	Hong Kong	2	0.2%
26	Brazil	2	0.2%
27	Sweden	2	0.2%
28	Mexico	2	0.2%
29	New Zealand	2	0.2%
30	Norway	2	0.2%
31	Oman	1	0.1%
32	Mongolia	1	0.1%
33	Latvia	1	0.1%
34	Denmark	1	0.1%
35	Belgium	1	0.1%
36	Bahrain	1	0.1%
37	India	1	0.1%
38	Iran, Islamic Republic of	1	0.1%