Rank	Countries/Territories	Count	Percent
1	United States	420	36.9%
2	China	418	36.7%
3	Germany	95	8.3%
4	Canada	32	2.8%
5	India	17	1.5%
6	Japan	15	1.3%
7	Austria	15	1.3%
8	Netherlands	12	1.1%
9	Singapore	12	1.1%
10	Spain	12	1.1%
11	United Kingdom	10	0.9%
12	Mauritius	8	0.7%
13	Italy	8	0.7%
14	Taiwan	7	0.6%
15	France	7	0.6%
16	Turkey	5	0.4%
17	Russia	5	0.4%
18	Uzbekistan	5	0.4%
19	Tunisia	4	0.4%
20	Cyprus	4	0.4%
21	Ireland	4	0.4%
22	Australia	3	0.3%
23	Pakistan	3	0.3%
24	Portugal	2	0.2%
25	Sweden	2	0.2%
26	Switzerland	2	0.2%
27	Iraq	2	0.2%
28	Hong Kong	2	0.2%
29	Iran, Islamic Republic of	1	0.1%
30	Korea, Republic of	1	0.1%
31	Malaysia	1	0.1%
32	Argentina	1	0.1%
33	Bangladesh	1	0.1%
34	Mongolia	1	0.1%
35	Norway	1	0.1%