1972

6.6

1985

6.9

5.3

2017

5.9

1966

6.1

2015

6.6

2020

6.5

2001

6.0

2023

6.9

2024

6.0

1975

7.1

2007

5.7

2012

6.3

2012

7.2

2019

5.4

2020

6.4

2018

6.5

1993

6.5

1986

5.8

1990

4.4