Rank	Countries/Territories	Count	Percent
1	United States	510	45.5%
2	China	319	28.4%
3	Germany	119	10.6%
4	Japan	33	2.9%
5		27	2.4%
6	Netherlands	25	2.2%
7	Singapore	14	1.2%
8	Norway	13	1.2%
9	United Kingdom	9	0.8%
10	France	7	0.6%
11	Latvia	6	0.5%
12	Canada	6	0.5%
13	Cyprus	5	0.4%
14	Korea, Republic of	5	0.4%
15	India	4	0.4%
16	Ukraine	4	0.4%
17	South Africa	2	0.2%
18	Iran, Islamic Republic of	2	0.2%
19	Portugal	2	0.2%
20	Romania	2	0.2%
21	Australia	2	0.2%
22	Argentina	1	0.1%
23	Hong Kong	1	0.1%
24	Russia	1	0.1%
25	Taiwan	1	0.1%
26	Lithuania	1	0.1%
27	Malaysia	1	0.1%