排名	国家/地区	数量	占比
1	China	558	72.2%
2	United States	137	17.7%
3		28	3.6%
4	Germany	20	2.6%
5	Singapore	7	0.9%
6	South Africa	2	0.3%
7	Hong Kong	2	0.3%
8	Dominican Republic	2	0.3%
9	Australia	2	0.3%
10	Bangladesh	2	0.3%
11	Brazil	2	0.3%
12	Malaysia	2	0.3%
13	Mongolia	1	0.1%
14	Bulgaria	1	0.1%
15	Canada	1	0.1%
16	Egypt	1	0.1%
17	Argentina	1	0.1%
18	India	1	0.1%
19	Japan	1	0.1%
20	Sweden	1	0.1%
21	Thailand	1	0.1%