排名	国家/地区	数量	占比
1	China	167	50.3%
2	United States	80	24.1%
3	Netherlands	18	5.4%
4	Japan	12	3.6%
5	Mongolia	7	2.1%
6	Russia	6	1.8%
7	Germany	6	1.8%
8	Argentina	4	1.2%
9	Australia	4	1.2%
10	Bangladesh	3	0.9%
11	Bulgaria	3	0.9%
12	Ireland	3	0.9%
13	Spain	3	0.9%
14	Korea, Republic of	2	0.6%
15	Luxembourg	2	0.6%
16	Singapore	2	0.6%
17	Canada	2	0.6%
18	France	2	0.6%
19	Hong Kong	1	0.3%
20	India	1	0.3%
21	Poland	1	0.3%
22	Sweden	1	0.3%
23	Ukraine	1	0.3%
24	Viet Nam	1	0.3%