Rank	Countries/Territories	Count	Percent
1	United States	328	35.6%
2	China	273	29.6%
3	Germany	108	11.7%
4	Japan	39	4.2%
5	India	35	3.8%
6	France	27	2.9%
7	Norway	13	1.4%
8	Canada	12	1.3%
9	Netherlands	10	1.1%
10	United Kingdom	9	1%
11	Korea, Republic of	8	0.9%
12	Singapore	7	0.8%
13	Ireland	5	0.5%
14	Italy	4	0.4%
15	El Salvador	4	0.4%
16	Uganda	4	0.4%
17	Viet Nam	3	0.3%
18	Spain	3	0.3%
19	Turkey	3	0.3%
20	Brazil	3	0.3%
21	Cyprus	3	0.3%
22	Egypt	3	0.3%
23	Hong Kong	3	0.3%
24	Austria	2	0.2%
25	Ukraine	2	0.2%
26	Mauritius	2	0.2%
27	Lithuania	1	0.1%
28	Panama	1	0.1%
29	Portugal	1	0.1%
30	Romania	1	0.1%
31	Tunisia	1	0.1%
32	Australia	1	0.1%
33	Chile	1	0.1%
34	Iran, Islamic Republic of	1	0.1%
35	Kazakhstan	1	0.1%