Rank	Countries/Territories	Count	Percent
1	United States	263	46.5%
2	China	103	18.2%
3	Germany	53	9.4%
4	Japan	33	5.8%
5	Hong Kong	16	2.8%
6	United Kingdom	15	2.7%
7	Switzerland	8	1.4%
8	Romania	8	1.4%
9	Cyprus	6	1.1%
10	Canada	6	1.1%
11	Mongolia	5	0.9%
12	Indonesia	5	0.9%
13	Russia	5	0.9%
14	Singapore	5	0.9%
15	Spain	4	0.7%
16	India	4	0.7%
17	Iran, Islamic Republic of	3	0.5%
18	Malaysia	3	0.5%
19	Mauritius	2	0.4%
20	Netherlands	2	0.4%
21	Italy	2	0.4%
22	Jamaica	2	0.4%
23	France	2	0.4%
24	Brazil	2	0.4%
25	Viet Nam	2	0.4%
26	Tanzania, United Republic of	1	0.2%
27	Thailand	1	0.2%
28	Serbia	1	0.2%
29	Chile	1	0.2%
30	Austria	1	0.2%
31	Belgium	1	0.2%
32	Ireland	1	0.2%