Α

β

R2

All years

2.556

4.436

15.89%

(3.971)

(4.620)

2015

3.217

3.949

4.22%

(4.188)

(0.856)*

2016

2.686

3.752

19.08%

(3.188)

(2.203)**

2017

2.195

4.276

43.54%

(4.236)

(1.856)**

2018

2.454

5.108

36.63%

(3.488)

(2.951)

2019

2.187

4.153

47.45%

(4.834)

(2.253)***

2020

4.424

3.908

46.30%

(3.389)

(3.308)