Rank	Countries/Territories	Count	Percent
1	United States	340	41%
2	China	213	25.7%
3	Germany	60	7.2%
4	Tunisia	30	3.6%
5	Japan	19	2.3%
6	Netherlands	19	2.3%
7	India	18	2.2%
8	Canada	13	1.6%
9	Ireland	11	1.3%
10	Singapore	8	1%
11	United Kingdom	8	1%
12	Turkey	7	0.8%
13	Norway	7	0.8%
14	France	7	0.8%
15		7	0.8%
16	Romania	6	0.7%
17	Taiwan	6	0.7%
18	Cyprus	5	0.6%
19	Iran, Islamic Republic of	4	0.5%
20	Argentina	4	0.5%
21	Italy	4	0.5%
22	Korea, Republic of	4	0.5%
23	Madagascar	3	0.4%
24	Bangladesh	3	0.4%
25	Greece	3	0.4%
26	Egypt	2	0.2%
27	Armenia	2	0.2%
28	New Zealand	2	0.2%
29	Sweden	2	0.2%
30	Malaysia	2	0.2%
31	Peru	1	0.1%
32	Switzerland	1	0.1%
33	Thailand	1	0.1%
34	Trinidad and Tobago	1	0.1%
35	Malawi	1	0.1%
36	Australia	1	0.1%
37	Bulgaria	1	0.1%
38	Colombia	1	0.1%
39	Hong Kong	1	0.1%
40	United Arab Emirates	1	0.1%