2001

5.8

1998

6.0

2004

6.4

2014

7.0

2016

6.5

2012

5.7

1980

5.9

2019

6.5

2022

6.1

2007

7.4

2022

6.8

2021

6.1

1993

6.5

1996

6.5

1965

6.3

2023

6.1

1984

7.2

1987

5.2

1999

6.6

2017

6.5