2011

6.6

1996

6.5

1989

5.5

1988

6.5

1993

6.5

2017

6.1

2023

6.4

2016

6.1

2020

6.5

2024

6.6

1966

6.2

1962

6.9

1995

5.6

1971

6.8

2004

5.7

1984

7.2

2019

7.3

2011

6.4

2003

6.3

2015

6.1