Rank	Countries/Territories	Count	Percent
1	United States	336	25.7%
2	China	325	24.8%
3	Germany	105	8%
4	Canada	52	4%
5	Romania	50	3.8%
6	Japan	44	3.4%
7	Netherlands	28	2.1%
8	Singapore	24	1.8%
9	Thailand	24	1.8%
10	United Kingdom	23	1.8%
11	France	23	1.8%
12	Iran, Islamic Republic of	20	1.5%
13	Italy	18	1.4%
14	Taiwan	15	1.1%
15	India	14	1.1%
16	Egypt	11	0.8%
17	Colombia	11	0.8%
18	Nigeria	11	0.8%
19	Pakistan	11	0.8%
20	Philippines	9	0.7%
21	New Zealand	8	0.6%
22	South Africa	7	0.5%
23	Australia	7	0.5%
24	Indonesia	7	0.5%
25	Ireland	7	0.5%
26	Cyprus	6	0.5%
27	Malaysia	6	0.5%
28	Norway	6	0.5%
29	Mexico	5	0.4%
30	Tanzania, United Republic of	5	0.4%
31	Viet Nam	5	0.4%
32	Austria	5	0.4%
33	Aland Islands	5	0.4%
34	Jamaica	5	0.4%
35	Kenya	5	0.4%
36	Argentina	4	0.3%
37	Hong Kong	4	0.3%
38	Macao	4	0.3%
39	Ukraine	3	0.2%
40	Sweden	3	0.2%
41	Switzerland	3	0.2%
42	Brazil	3	0.2%
43	Korea, Republic of	3	0.2%
44	Jordan	3	0.2%
45	Israel	3	0.2%
46	Ghana	2	0.2%
47	Greece	2	0.2%
48	Latvia	2	0.2%
49	Ethiopia	2	0.2%
50	Denmark	2	0.2%
51	Namibia	2	0.2%
52	Sri Lanka	2	0.2%
53	Turkey	2	0.2%
54	Mauritius	2	0.2%
55	Russia	2	0.2%
56	Rwanda	2	0.2%
57	Slovakia	1	0.1%
58	Portugal	1	0.1%
59	Mongolia	1	0.1%
60	United Arab Emirates	1	0.1%
61	Spain	1	0.1%
62	Czech Republic	1	0.1%
63	Belgium	1	0.1%
64	Bosnia and Herzegovina	1	0.1%
65	Botswana	1	0.1%
66	Lithuania	1	0.1%
67	Guatemala	1	0.1%