Rank	Countries/Territories	Count	Percent
1	United States	517	38.2%
2	China	389	28.7%
3	Germany	139	10.3%
4	India	43	3.2%
5	Japan	38	2.8%
6	Canada	34	2.5%
7	Ireland	24	1.8%
8	France	24	1.8%
9	Netherlands	23	1.7%
10	Singapore	20	1.5%
11	Hong Kong	17	1.3%
12	Norway	14	1%
13	Turkey	9	0.7%
14	Korea, Republic of	8	0.6%
15	Australia	7	0.5%
16	Nepal	6	0.4%
17	United Kingdom	5	0.4%
18	Ukraine	4	0.3%
19	Italy	4	0.3%
20	Libya	3	0.2%
21	Spain	2	0.1%
22	Switzerland	2	0.1%
23	Taiwan	2	0.1%
24	Bangladesh	2	0.1%
25	Costa Rica	2	0.1%
26	Israel	2	0.1%
27	Greece	2	0.1%
28	Colombia	1	0.1%
29	Cyprus	1	0.1%
30	Ethiopia	1	0.1%
31	Finland	1	0.1%
32	Argentina	1	0.1%
33	Slovakia	1	0.1%
34	Philippines	1	0.1%
35	Russia	1	0.1%
36	Serbia	1	0.1%
37	Malaysia	1	0.1%
38	Mongolia	1	0.1%
39	Nigeria	1	0.1%