Rank	Countries/Territories	Count	Percent
1	United States	385	49.6%
2	China	149	19.2%
3	Germany	88	11.3%
4	Netherlands	18	2.3%
5	Japan	15	1.9%
6	South Africa	10	1.3%
7	Iran, Islamic Republic of	9	1.2%
8	Ireland	9	1.2%
9	Italy	8	1%
10	Australia	8	1%
11	Canada	8	1%
12	Turkey	8	1%
13	Spain	7	0.9%
14	Mexico	5	0.6%
15	Singapore	5	0.6%
16	Taiwan	5	0.6%
17	Norway	4	0.5%
18	Pakistan	4	0.5%
19	Korea, Republic of	4	0.5%
20	France	3	0.4%
21	Cyprus	3	0.4%
22	United Kingdom	3	0.4%
23	Romania	2	0.3%
24	Barbados	2	0.3%
25	Egypt	2	0.3%
26	Finland	2	0.3%
27	Hong Kong	2	0.3%
28	India	2	0.3%
29	Indonesia	1	0.1%
30	Malaysia	1	0.1%
31	Czech Republic	1	0.1%
32	Saudi Arabia	1	0.1%
33	Sweden	1	0.1%
34	Switzerland	1	0.1%