2023

8.6

2004

7.1

2001

6.3

1966

6.2

2010

7.0

1968

6.9

2015

5.9

1969

5.1

1980

6.1

1991

8.1

1988

6.3

6.8

2007

7.2

1949

5.1

2021

5.8

1987

6.1

1975

6.8

2022

7.5

1993

5.3

2024

5.7