年份

拟合值

真实值

绝对误差

相对误差(%)

平均误差(%)

2015

1875.2562

1808.10

−67.1562

−3.7141

2.9588

2016

1906.8446

1812.29

−94.5546

−5.2174

2017

1867.8383

1886.17

18.3317

0.9719

2018

1926.2365

1994.35

68.1135

3.4153

2019

2085.8877

2073.56

−12.3277

−0.5945

2020

2166.8262

2116.69

−50.1362

−2.3686

2021

2177.3260

2278.24

100.9140

4.4295