Rank	Countries/Territories	Count	Percent
1	United States	465	38.2%
2	China	383	31.4%
3	Germany	120	9.9%
4	Canada	42	3.4%
5	France	35	2.9%
6	Netherlands	26	2.1%
7	Australia	14	1.1%
8	Japan	11	0.9%
9	Singapore	11	0.9%
10	Norway	9	0.7%
11	Latvia	9	0.7%
12	Hong Kong	9	0.7%
13	Argentina	8	0.7%
14	Cyprus	8	0.7%
15	Moldova, Republic of	7	0.6%
16	Turkey	7	0.6%
17	Ukraine	6	0.5%
18	India	6	0.5%
19	Malaysia	6	0.5%
20	Bulgaria	5	0.4%
21	Ireland	5	0.4%
22	Switzerland	4	0.3%
23	South Africa	4	0.3%
24	Spain	3	0.2%
25	Mongolia	3	0.2%
26	Mauritius	3	0.2%
27	Indonesia	2	0.2%
28	United Kingdom	2	0.2%
29	Thailand	1	0.1%
30	Nigeria	1	0.1%
31	Portugal	1	0.1%
32	Bangladesh	1	0.1%
33	Brazil	1	0.1%