Rank	Countries/Territories	Count	Percent
1	United States	447	35.1%
2	China	264	20.7%
3	Canada	95	7.5%
4	Germany	93	7.3%
5	Australia	52	4.1%
6	Japan	35	2.7%
7	Brazil	33	2.6%
8	Korea, Republic of	32	2.5%
9	India	26	2%
10	Spain	21	1.6%
11	United Kingdom	21	1.6%
12	Netherlands	19	1.5%
13	Singapore	11	0.9%
14	France	10	0.8%
15	Belgium	10	0.8%
16	Czech Republic	9	0.7%
17	Greece	8	0.6%
18	Hong Kong	8	0.6%
19	Mexico	8	0.6%
20	Norway	7	0.5%
21	Italy	7	0.5%
22	Cyprus	7	0.5%
23	Taiwan	6	0.5%
24	Israel	5	0.4%
25	South Africa	5	0.4%
26	Russia	4	0.3%
27	Saudi Arabia	4	0.3%
28	Colombia	4	0.3%
29	Iran, Islamic Republic of	3	0.2%
30	Ireland	3	0.2%
31	Sweden	3	0.2%
32	Switzerland	2	0.2%
33	Indonesia	2	0.2%
34	Malaysia	2	0.2%
35	Poland	2	0.2%
36	Romania	2	0.2%
37	Lithuania	1	0.1%
38	Sri Lanka	1	0.1%
39	Austria	1	0.1%