年份

原始值

预测值

残差

相对误差(%)

2012

19,428

19,428

0

0

2013

19,876

20298.26

−422.259

2.124

2014

22,142

21380.21

761.789

3.44

2015

22,725

22519.83

205.167

0.903

2016

23,608

23720.2

−112.2

0.475

2017

24,775

24984.55

−209.55

0.846

2018

26,519

26316.29

202.706

0.764

2019

26,833

27719.02

−886.022

3.302

2020

29,193

29196.52

−3.52

0.012

2021

31,302

30752.77

549.227

1.755