Rank	Countries/Territories	Count	Percent
1	United States	332	43.1%
2	China	256	33.2%
3	Germany	76	9.9%
4	Canada	17	2.2%
5	Russia	15	1.9%
6	Poland	15	1.9%
7	Hong Kong	7	0.9%
8	India	7	0.9%
9	Korea, Republic of	6	0.8%
10	Cyprus	5	0.6%
11	Australia	4	0.5%
12	Greece	4	0.5%
13	Ireland	4	0.5%
14	Netherlands	4	0.5%
15	United Kingdom	4	0.5%
16	Romania	3	0.4%
17	Oman	2	0.3%
18	Jordan	2	0.3%
19	Spain	2	0.3%
20	Ukraine	1	0.1%
21	Singapore	1	0.1%
22	Mongolia	1	0.1%
23	Iran, Islamic Republic of	1	0.1%
24	Bulgaria	1	0.1%