Time

Predictive value

The relative error

The relative error

Jan 18

20.30

20.05

0.013

Feb 18

16.47

17.16

0.040

Mar 18

17.23

17.41

0.010

Apr 18

20.14

20.00

0.0060

May 18

21.38

21.29

0.0042

Jun 18

21.06

21.66

0.028

Jul 18

21.96

21.26

0.019

Aug 18

22.47

21.74

0.034

Sep 18

21.93

22.67

0.033

Oct 18

21.27

21.72

0.026

Nov 18

23.20

22.74

0.020

Dec 18

23.40

22.12

0.057

Mean relative error

0.022