Year

effch

techch

Pech

Sech

tfpch

2012

0.818

1.24

0.904

0.905

1.015

2013

1.342

0.657

1.075

1.249

0.881

2014

1.038

0.971

1.101

0.943

1.008

2015

1.043

0.89

1.01

1.033

0.929

2016

1.013

0.804

1.007

1.005

0.814

2017

1.044

0.938

1.026

1.017

0.979

2018

1.036

1.015

1.014

1.021

1.051

2019

0.948

1.163

0.976

0.971

1.103

2020

1.007

0.922

0.993

1.014

0.928

Mean

1.025

0.941

1.010

1.014

0.964