Rank	Countries/Territories	Count	Percent
1	United States	544	37.4%
2	China	214	14.7%
3	Germany	198	13.6%
4	France	137	9.4%
5	Canada	51	3.5%
6	Netherlands	35	2.4%
7	Russia	31	2.1%
8	India	30	2.1%
9	Australia	27	1.9%
10	Korea, Republic of	25	1.7%
11	United Kingdom	21	1.4%
12	Japan	16	1.1%
13	Sweden	13	0.9%
14	Taiwan	12	0.8%
15	Turkey	9	0.6%
16	Italy	7	0.5%
17	Portugal	6	0.4%
18		6	0.4%
19	Colombia	6	0.4%
20	Cyprus	5	0.3%
21	Brazil	5	0.3%
22	Iran, Islamic Republic of	4	0.3%
23	Saudi Arabia	4	0.3%
24	Vanuatu	4	0.3%
25	Singapore	3	0.2%
26	Lithuania	3	0.2%
27	New Zealand	3	0.2%
28	Finland	3	0.2%
29	Croatia	3	0.2%
30	Austria	2	0.1%
31	Denmark	2	0.1%
32	Hong Kong	2	0.1%
33	Norway	2	0.1%
34	Peru	2	0.1%
35	Mexico	2	0.1%
36	Israel	2	0.1%
37	South Africa	2	0.1%
38	Switzerland	2	0.1%
39	Ukraine	2	0.1%
40	Thailand	2	0.1%
41	Romania	1	0.1%
42	Spain	1	0.1%
43	Philippines	1	0.1%
44	Poland	1	0.1%
45	Hungary	1	0.1%
46	Ireland	1	0.1%
47	Bangladesh	1	0.1%
48	Czech Republic	1	0.1%