Rank	Countries/Territories	Count	Percent
1	United States	409	37.7%
2	China	348	32.1%
3	Germany	69	6.4%
4	Canada	40	3.7%
5	Japan	35	3.2%
6	India	30	2.8%
7	France	13	1.2%
8	Ireland	10	0.9%
9	Netherlands	10	0.9%
10	Italy	9	0.8%
11	Australia	8	0.7%
12	Cyprus	8	0.7%
13	Turkey	8	0.7%
14	Brazil	7	0.6%
15	Iran, Islamic Republic of	6	0.6%
16	Israel	6	0.6%
17	Russia	5	0.5%
18	Hong Kong	5	0.5%
19	United Kingdom	5	0.5%
20	Switzerland	5	0.5%
21	Slovenia	4	0.4%
22	Kazakhstan	4	0.4%
23	Mongolia	3	0.3%
24	Singapore	3	0.3%
25	Peru	3	0.3%
26	Portugal	3	0.3%
27	Greece	3	0.3%
28	Sweden	3	0.3%
29	Ukraine	3	0.3%
30	Sri Lanka	2	0.2%
31	Taiwan	2	0.2%
32	Colombia	2	0.2%
33	Bangladesh	2	0.2%
34	Denmark	2	0.2%
35	Korea, Republic of	2	0.2%
36	Macao	1	0.1%
37	Pakistan	1	0.1%
38	South Africa	1	0.1%
39	Spain	1	0.1%
40	Ecuador	1	0.1%
41	Finland	1	0.1%
42	Trinidad and Tobago	1	0.1%