Rank	Countries/Territories	Count	Percent
1	United States	390	32.2%
2	China	312	25.8%
3	Germany	163	13.5%
4	Japan	80	6.6%
5	Canada	40	3.3%
6	Korea, Republic of	35	2.9%
7	France	34	2.8%
8	Ireland	32	2.6%
9	Singapore	17	1.4%
10	India	13	1.1%
11	Netherlands	12	1%
12	Sweden	9	0.7%
13	Cyprus	7	0.6%
14	United Kingdom	6	0.5%
15	Egypt	5	0.4%
16	Taiwan	5	0.4%
17	Thailand	5	0.4%
18	Ukraine	4	0.3%
19	Portugal	4	0.3%
20	Russia	4	0.3%
21	Australia	4	0.3%
22	Denmark	3	0.2%
23	Hong Kong	3	0.2%
24	Italy	3	0.2%
25	Mongolia	3	0.2%
26	Saudi Arabia	2	0.2%
27	South Africa	2	0.2%
28	Iran, Islamic Republic of	2	0.2%
29	Poland	2	0.2%
30	Latvia	1	0.1%
31	Lithuania	1	0.1%
32	Mexico	1	0.1%
33	Brazil	1	0.1%
34	Argentina	1	0.1%
35	Nepal	1	0.1%
36	Norway	1	0.1%
37	Panama	1	0.1%
38	Peru	1	0.1%