1967

6.6

1990

6.9

2004

6.1

2021

6.2

2008

7.6

1964

7.1

1987

6.3

2013

7.2

2022

6.1

2020

7.4

1993

6.7

1989

7.3

2007

6.9

2014

6.0

1963

7.5

1974

6.7

2017

4.7

1953

4.5

1983

5.3

2003

7.7