Rank	Countries/Territories	Count	Percent
1	United States	269	57.2%
2	China	87	18.5%
3	Germany	18	3.8%
4	Japan	12	2.6%
5	Netherlands	11	2.3%
6	United Kingdom	7	1.5%
7	Switzerland	6	1.3%
8	India	6	1.3%
9	Iran, Islamic Republic of	6	1.3%
10	Ireland	4	0.9%
11	Korea, Republic of	4	0.9%
12	Canada	4	0.9%
13	New Zealand	4	0.9%
14	Philippines	4	0.9%
15	Australia	3	0.6%
16	Hong Kong	2	0.4%
17	Jordan	2	0.4%
18	Israel	2	0.4%
19	Saudi Arabia	2	0.4%
20	Singapore	2	0.4%
21	Spain	2	0.4%
22	Sri Lanka	2	0.4%
23	France	2	0.4%
24	Sweden	1	0.2%
25	South Africa	1	0.2%
26	Romania	1	0.2%
27	Pakistan	1	0.2%
28	Italy	1	0.2%
29	Mauritius	1	0.2%
30	Egypt	1	0.2%
31	Austria	1	0.2%
32		1	0.2%