Rank	Countries/Territories	Count	Percent
1	United States	458	40.4%
2	China	347	30.6%
3	Germany	107	9.4%
4	Poland	34	3%
5	Canada	30	2.6%
6	Korea, Republic of	21	1.9%
7	Russia	17	1.5%
8	Japan	15	1.3%
9	France	13	1.1%
10	Singapore	11	1%
11	United Kingdom	11	1%
12	Iran, Islamic Republic of	10	0.9%
13	India	8	0.7%
14	Taiwan	8	0.7%
15	Cyprus	6	0.5%
16	Netherlands	6	0.5%
17	Australia	5	0.4%
18	Mongolia	4	0.4%
19	Italy	4	0.4%
20	Ukraine	3	0.3%
21	South Africa	2	0.2%
22	Sweden	2	0.2%
23	Switzerland	2	0.2%
24	Macao	2	0.2%
25	Malaysia	2	0.2%
26	New Zealand	2	0.2%
27	Norway	1	0.1%
28	Denmark	1	0.1%
29	Greece	1	0.1%
30	Hong Kong	1	0.1%