Rank	Countries/Territories	Count	Percent
1	United States	215	28.1%
2	China	148	19.4%
3	Germany	45	5.9%
4	Netherlands	44	5.8%
5	Slovenia	30	3.9%
6	United Kingdom	28	3.7%
7	Ireland	24	3.1%
8	Iraq	20	2.6%
9	Russia	17	2.2%
10	Japan	15	2%
11	France	11	1.4%
12	Canada	11	1.4%
13	India	10	1.3%
14	Singapore	10	1.3%
15	Indonesia	9	1.2%
16	Namibia	8	1%
17	Turkey	8	1%
18	Croatia	7	0.9%
19	Egypt	7	0.9%
20	Thailand	6	0.8%
21	Ukraine	6	0.8%
22	Uganda	5	0.7%
23	South Africa	5	0.7%
24	Hong Kong	5	0.7%
25	Australia	5	0.7%
26	Iran, Islamic Republic of	5	0.7%
27	Korea, Republic of	4	0.5%
28	Nigeria	4	0.5%
29	Mexico	3	0.4%
30	Italy	3	0.4%
31	Bosnia and Herzegovina	3	0.4%
32	Brazil	3	0.4%
33	Cyprus	3	0.4%
34	Switzerland	3	0.4%
35	Philippines	3	0.4%
36	Portugal	3	0.4%
37	Slovakia	2	0.3%
38	Viet Nam	2	0.3%
39	Estonia	2	0.3%
40	Ecuador	2	0.3%
41	Lao People's Democratic Republic	2	0.3%
42	Libya	1	0.1%
43	Lithuania	1	0.1%
44	Mali	1	0.1%
45	Morocco	1	0.1%
46	Nepal	1	0.1%
47	Oman	1	0.1%
48	Pakistan	1	0.1%
49	Argentina	1	0.1%
50	Ethiopia	1	0.1%
51	Ghana	1	0.1%
52	Guyana	1	0.1%
53	Denmark	1	0.1%
54	Chile	1	0.1%
55	Saudi Arabia	1	0.1%
56	Romania	1	0.1%
57	Poland	1	0.1%
58	Tanzania, United Republic of	1	0.1%
59	Tunisia	1	0.1%