1979

5.9

2014

7.2

1995

8.0

1981

5.0

2019

6.7

1983

7.3

2022

6.8

2023

9.0

1975

6.4

1944

5.5

2023

6.9

2001

5.6

2007

7.4

2006

7.4

1962

7.6

1993

6.2

1990

7.3

2020

6.9

1998

4.2

1999

6.4