Rank	Countries/Territories	Count	Percent
1	United States	515	40.1%
2	China	425	33.1%
3	Germany	141	11%
4	Japan	27	2.1%
5	Latvia	24	1.9%
6	Netherlands	21	1.6%
7	Canada	18	1.4%
8	France	14	1.1%
9	Hong Kong	11	0.9%
10	Australia	10	0.8%
11	Cyprus	9	0.7%
12	United Kingdom	9	0.7%
13	Russia	6	0.5%
14	South Africa	5	0.4%
15	India	5	0.4%
16	Brazil	4	0.3%
17	Singapore	4	0.3%
18	Nigeria	4	0.3%
19	Mongolia	3	0.2%
20	Romania	3	0.2%
21	Taiwan	3	0.2%
22	Ukraine	3	0.2%
23	Iran, Islamic Republic of	3	0.2%
24	Korea, Republic of	3	0.2%
25	Italy	2	0.2%
26	Bulgaria	2	0.2%
27	Portugal	2	0.2%
28	Myanmar	2	0.2%
29	Norway	1	0.1%
30	Philippines	1	0.1%
31	Viet Nam	1	0.1%
32	Macao	1	0.1%
33	Malaysia	1	0.1%
34	Moldova, Republic of	1	0.1%