Rank	Countries/Territories	Count	Percent
1	United States	303	32.9%
2	Germany	291	31.6%
3	China	186	20.2%
4	France	25	2.7%
5	Japan	23	2.5%
6	Korea, Republic of	17	1.8%
7	Canada	11	1.2%
8	Australia	8	0.9%
9	Singapore	7	0.8%
10	Ireland	6	0.7%
11	Netherlands	4	0.4%
12	Cyprus	4	0.4%
13	India	4	0.4%
14	Belarus	3	0.3%
15	Brazil	3	0.3%
16	Spain	3	0.3%
17	Sweden	3	0.3%
18	Ukraine	3	0.3%
19	United Kingdom	2	0.2%
20	South Africa	2	0.2%
21	Italy	2	0.2%
22	Hong Kong	2	0.2%
23	Malaysia	2	0.2%
24	Mongolia	1	0.1%
25	Iran, Islamic Republic of	1	0.1%
26	Argentina	1	0.1%
27	Ethiopia	1	0.1%
28	Finland	1	0.1%
29	Russia	1	0.1%
30	Switzerland	1	0.1%