Rank	Countries/Territories	Count	Percent
1	United States	437	44.8%
2	China	261	26.8%
3	Germany	127	13%
4		31	3.2%
5	Japan	16	1.6%
6	Netherlands	15	1.5%
7	Canada	15	1.5%
8	United Kingdom	12	1.2%
9	Iran, Islamic Republic of	10	1%
10	Singapore	9	0.9%
11	Cyprus	6	0.6%
12	France	6	0.6%
13	Korea, Republic of	6	0.6%
14	South Africa	3	0.3%
15	Spain	3	0.3%
16	Syrian Arab Republic	2	0.2%
17	Ukraine	2	0.2%
18	Latvia	2	0.2%
19	Mongolia	2	0.2%
20	Hong Kong	2	0.2%
21	Bangladesh	2	0.2%
22	Argentina	2	0.2%
23	Australia	1	0.1%
24	Guatemala	1	0.1%
25	India	1	0.1%
26	Russia	1	0.1%