Rank	Countries/Territories	Count	Percent
1	United States	408	41.7%
2	China	234	23.9%
3	Germany	156	16%
4	Japan	30	3.1%
5	France	30	3.1%
6		20	2%
7	Canada	16	1.6%
8	Singapore	15	1.5%
9	Ukraine	13	1.3%
10	Cyprus	9	0.9%
11	Netherlands	8	0.8%
12	India	7	0.7%
13	Korea, Republic of	6	0.6%
14	Argentina	3	0.3%
15	Australia	3	0.3%
16	Italy	2	0.2%
17	Mongolia	2	0.2%
18	United Kingdom	2	0.2%
19	Philippines	2	0.2%
20	Portugal	2	0.2%
21	Thailand	2	0.2%
22	Russia	1	0.1%
23	South Africa	1	0.1%
24	Switzerland	1	0.1%
25	Uzbekistan	1	0.1%
26	Pakistan	1	0.1%
27	Malaysia	1	0.1%
28	Ireland	1	0.1%
29	Bangladesh	1	0.1%