排名	国家/地区	数量	占比
1	China	446	71.8%
2	United States	117	18.8%
3	Japan	14	2.3%
4	Germany	8	1.3%
5	Taiwan	7	1.1%
6	Singapore	6	1%
7	Brazil	3	0.5%
8	France	3	0.5%
9	Denmark	2	0.3%
10	Iran, Islamic Republic of	2	0.3%
11	Switzerland	2	0.3%
12	New Zealand	2	0.3%
13	Norway	2	0.3%
14	Russia	1	0.2%
15	Hong Kong	1	0.2%
16	South Africa	1	0.2%
17	Malaysia	1	0.2%
18	Mexico	1	0.2%
19	Netherlands	1	0.2%
20	Venezuela, Bolivarian Republic of	1	0.2%