1997

2.5

2017

6.1

1981

5.8

1965

6.0

1985

10.0

1988

6.8

2020

6.0

2023

5.7

1999

6.3

2020

0.0

2025

0.0

2023

4.2

2016

6.2

1953

0.0

2021

0.0

1979

9.8

2007

7.3

1998

7.5

2009

4.2

2005

6.2