Rank	Countries/Territories	Count	Percent
1	United States	396	40.1%
2	China	317	32.1%
3	Germany	96	9.7%
4	France	31	3.1%
5	Japan	19	1.9%
6	Canada	18	1.8%
7	Netherlands	12	1.2%
8	Slovakia	11	1.1%
9	Australia	10	1%
10	Cyprus	9	0.9%
11	India	9	0.9%
12	Singapore	8	0.8%
13	Ukraine	7	0.7%
14	Korea, Republic of	7	0.7%
15	Lithuania	5	0.5%
16	United Kingdom	5	0.5%
17	Egypt	4	0.4%
18	Iran, Islamic Republic of	3	0.3%
19	Mongolia	3	0.3%
20	Italy	2	0.2%
21	Denmark	2	0.2%
22	Taiwan	2	0.2%
23	New Zealand	2	0.2%
24	Pakistan	2	0.2%
25	Romania	2	0.2%
26	Norway	1	0.1%
27	Sweden	1	0.1%
28	Switzerland	1	0.1%
29	Argentina	1	0.1%
30	Hong Kong	1	0.1%
31	Malaysia	1	0.1%