Rank	Countries/Territories	Count	Percent
1	United States	168	33.2%
2	China	150	29.6%
3	Germany	30	5.9%
4	Spain	23	4.5%
5	Japan	15	3%
6	Korea, Republic of	14	2.8%
7	India	12	2.4%
8	Sri Lanka	11	2.2%
9	France	10	2%
10	Ireland	10	2%
11	Canada	8	1.6%
12	Ukraine	7	1.4%
13	Thailand	5	1%
14	Netherlands	5	1%
15	Cyprus	5	1%
16	Australia	3	0.6%
17	Taiwan	3	0.6%
18	United Arab Emirates	3	0.6%
19	Tanzania, United Republic of	2	0.4%
20	Brazil	2	0.4%
21	Chile	2	0.4%
22	Dominican Republic	2	0.4%
23	Egypt	2	0.4%
24	Mexico	2	0.4%
25	Iran, Islamic Republic of	2	0.4%
26	Hong Kong	2	0.4%
27	Denmark	1	0.2%
28	Switzerland	1	0.2%
29	Pakistan	1	0.2%
30	Portugal	1	0.2%
31	Singapore	1	0.2%
32	South Africa	1	0.2%
33	United Kingdom	1	0.2%
34	Viet Nam	1	0.2%