Rank	Countries/Territories	Count	Percent
1	United States	305	47.4%
2	China	95	14.8%
3	Germany	70	10.9%
4	France	22	3.4%
5	Canada	20	3.1%
6	Singapore	16	2.5%
7	Australia	13	2%
8	South Africa	11	1.7%
9	Egypt	10	1.6%
10	Iran, Islamic Republic of	8	1.2%
11	Saudi Arabia	8	1.2%
12	Netherlands	7	1.1%
13	Switzerland	6	0.9%
14	Taiwan	6	0.9%
15	United Kingdom	6	0.9%
16	Japan	5	0.8%
17	Indonesia	5	0.8%
18	Ireland	4	0.6%
19	Cyprus	4	0.6%
20	Argentina	3	0.5%
21	India	3	0.5%
22	Greece	2	0.3%
23	Poland	2	0.3%
24	Russia	2	0.3%
25	Togo	2	0.3%
26	Latvia	2	0.3%
27	Yemen	1	0.2%
28	Ukraine	1	0.2%
29	Korea, Republic of	1	0.2%
30	Hong Kong	1	0.2%
31	Hungary	1	0.2%
32	Bangladesh	1	0.2%