Rank	Countries/Territories	Count	Percent
1	United States	410	35.6%
2	China	407	35.3%
3	Germany	57	4.9%
4	France	54	4.7%
5	Japan	43	3.7%
6		33	2.9%
7	Singapore	19	1.6%
8	Korea, Republic of	17	1.5%
9	Netherlands	14	1.2%
10	United Kingdom	13	1.1%
11	Norway	9	0.8%
12	Ukraine	8	0.7%
13	Greece	6	0.5%
14	Hong Kong	6	0.5%
15	Canada	6	0.5%
16	Australia	5	0.4%
17	Spain	5	0.4%
18	Mongolia	5	0.4%
19	Iraq	4	0.3%
20	Poland	4	0.3%
21	Taiwan	4	0.3%
22	Sri Lanka	3	0.3%
23	Cyprus	3	0.3%
24	India	3	0.3%
25	Latvia	3	0.3%
26	Malaysia	2	0.2%
27	Denmark	2	0.2%
28	Argentina	2	0.2%
29	Russia	2	0.2%
30	Saudi Arabia	2	0.2%
31	Belgium	1	0.1%
32	Bulgaria	1	0.1%