年份

实际值

预测值

残差

相对误差

S₁

S₂

2011

353.83

353.83

0

0

267.1686

42.2501

2012

440.96

499.3429

−58.3829

0.1324

2013

523.06

556.1606

−33.1006

0.0633

2014

620.78

619.4433

1.3367

0.0022

2015

710

689.9266

20.0734

0.0283

2016

795.39

768.4299

26.9575

0.0339

2017

884.53

855.8657

28.6645

0.0324

2018

987.36

953.2503

34.1097

0.0345

2019

1091.81

1061.7158

30.0942

0.0276

2020

1106.15

1182.5231

−76.3731

0.0690