行业均值(标准值)
i ¯
j ¯
k ¯
l ¯
m ¯
n ¯
电力设备–电池
20.19%
−17.50%
3.32%
3.87%
11.70%
0.0156
房地产开发
31.25%
−2.46%
1.36%
1.48%
4.98%
0.1274