Rank	Countries/Territories	Count	Percent
1	United States	276	38.5%
2	China	169	23.6%
3	Germany	85	11.9%
4	Japan	21	2.9%
5	India	20	2.8%
6	New Zealand	19	2.7%
7	Norway	15	2.1%
8	Iran, Islamic Republic of	14	2%
9	France	11	1.5%
10	Spain	8	1.1%
11	Canada	7	1%
12	United Kingdom	7	1%
13	Australia	6	0.8%
14	Italy	6	0.8%
15	Singapore	6	0.8%
16	Taiwan	5	0.7%
17	Netherlands	5	0.7%
18	Korea, Republic of	4	0.6%
19	Lithuania	3	0.4%
20	Argentina	3	0.4%
21	Denmark	3	0.4%
22	Cyprus	2	0.3%
23	Ireland	2	0.3%
24	Israel	2	0.3%
25	Mexico	2	0.3%
26	Russia	2	0.3%
27	United Arab Emirates	2	0.3%
28	Ukraine	1	0.1%
29	Jordan	1	0.1%
30	Namibia	1	0.1%
31	Nepal	1	0.1%
32	Philippines	1	0.1%
33	Romania	1	0.1%
34	Hong Kong	1	0.1%
35	Hungary	1	0.1%
36	Egypt	1	0.1%
37	Barbados	1	0.1%
38	Viet Nam	1	0.1%