Rank	Countries/Territories	Count	Percent
1	United States	534	45.8%
2	Germany	215	18.4%
3	China	186	16%
4	Canada	53	4.5%
5	Japan	24	2.1%
6	France	21	1.8%
7	Netherlands	20	1.7%
8	Ukraine	14	1.2%
9		13	1.1%
10	Australia	9	0.8%
11	Korea, Republic of	9	0.8%
12	India	8	0.7%
13	Cyprus	7	0.6%
14	Hong Kong	6	0.5%
15	Argentina	6	0.5%
16	South Africa	6	0.5%
17	Singapore	4	0.3%
18	United Kingdom	3	0.3%
19	Russia	3	0.3%
20	Spain	3	0.3%
21	Mauritius	3	0.3%
22	Ireland	3	0.3%
23	Italy	3	0.3%
24	Iran, Islamic Republic of	2	0.2%
25	Mongolia	2	0.2%
26	Thailand	2	0.2%
27	Turkey	2	0.2%
28	Poland	1	0.1%
29	Sweden	1	0.1%
30	Taiwan	1	0.1%
31	Lebanon	1	0.1%
32	Lithuania	1	0.1%