2001

6.2

1985

6.1

1988

5.5

2005

5.2

2021

8.1

2015

5.1

1987

6.7

2020

6.3

2013

6.6

1977

6.2

1993

7.0

1992

6.4

2024

6.6

1985

6.8

1976

7.5

1976

5.7

1988

5.9

1989

5.8

2022

3.4

2019

8.1