2021

8.9

2016

7.1

2016

6.5

2011

7.3

1972

6.3

2017

7.1

2010

5.5

2020

4.0

2015

5.1

2007

7.0

2007

6.1

1971

7.7

2018

4.9

7.0

1993

6.1

1938

6.8

1978

6.0

2025

8.1

1953

8.0

2023

10.0