7.9

2017

7.8

2023

6.4

1993

6.5

1985

6.1

2024

6.6

2011

6.4

2011

6.7

1998

6.1

2011

6.7

1965

6.4

2022

6.6

1968

6.9

1989

5.5

2013

6.5

2018

6.3

1999

6.8

1980

5.9

1992

6.5

2019

6.7