1953

4.8

2011

6.4

2018

6.5

2024

6.9

2023

6.4

1972

6.6

1972

6.3

2022

7.2

2015

6.6

2012

6.4

1993

6.5

1985

6.1

2017

6.9

2024

7.2

2022

6.8

1992

6.4

2004

6.4

1975

7.0

6.6

6.6