年份

effch

techch

pech

sech

tfpch

2013~2014

0.997

0.904

1.004

0.993

0.901

2014~2015

1.010

0.999

1.006

1.004

1.009

2015~2016

0.989

1.008

0.985

1.004

0.997

2016~2017

0.955

1.036

0.977

0.977

0.990