1953

4.8

7.0

2015

6.4

2010

7.9

2018

6.3

2007

6.1

2016

6.7

2010

6.1

1993

5.6

2019

6.3

2020

6.4

1985

6.1

2025

5.0

2024

7.3

1977

6.7

2017

4.7

2022

8.9

1972

6.6