1995

6.6

2002

6.7

1971

7.5

2017

5.2

2023

2.5

1979

7.7

1961

7.3

1963

7.0

1964

7.0

1967

7.0

1991

7.7

1998

7.2

2021

6.4

2021

7.5

2020

6.3

1964

6.8

2005

6.2

1997

6.2

2004

7.1

1965

6.4