Rank	Countries/Territories	Count	Percent
1	United States	417	42.4%
2	China	178	18.1%
3	Germany	103	10.5%
4	India	38	3.9%
5	Canada	27	2.7%
6	Netherlands	25	2.5%
7	United Kingdom	21	2.1%
8	Brazil	12	1.2%
9	France	12	1.2%
10	Norway	10	1%
11	Ireland	9	0.9%
12	Colombia	9	0.9%
13	Portugal	8	0.8%
14	Nigeria	7	0.7%
15	Japan	7	0.7%
16	Saudi Arabia	7	0.7%
17	Tanzania, United Republic of	6	0.6%
18	Egypt	6	0.6%
19	Dominican Republic	5	0.5%
20	Ghana	5	0.5%
21	Korea, Republic of	5	0.5%
22	Jamaica	5	0.5%
23	Romania	4	0.4%
24	Russia	3	0.3%
25	Cyprus	3	0.3%
26	Algeria	3	0.3%
27	Saint Lucia	3	0.3%
28	Spain	3	0.3%
29	Singapore	2	0.2%
30	Slovakia	2	0.2%
31	South Africa	2	0.2%
32	Morocco	2	0.2%
33	Thailand	2	0.2%
34	Uganda	2	0.2%
35	United Arab Emirates	2	0.2%
36	Zambia	2	0.2%
37	Greece	2	0.2%
38	Guyana	2	0.2%
39	Iran, Islamic Republic of	2	0.2%
40	Rwanda	2	0.2%
41	Oman	2	0.2%
42	Pakistan	2	0.2%
43	Italy	2	0.2%
44	Israel	1	0.1%
45	Malaysia	1	0.1%
46	Moldova, Republic of	1	0.1%
47	Kenya	1	0.1%
48	Puerto Rico	1	0.1%
49	Indonesia	1	0.1%
50	Hong Kong	1	0.1%
51	Argentina	1	0.1%
52	Australia	1	0.1%
53	Yemen	1	0.1%
54	Senegal	1	0.1%
55	Taiwan	1	0.1%