1992

6.5

1985

6.1

2023

6.7

2019

6.7

1994

6.9

2011

6.6

2020

6.8

2021

6.1

1995

5.6

2023

6.4

2000

6.6

1940

6.2

1980

6.4

2003

6.3

2015

6.5

1993

6.6

2006

6.7

1988

5.7

2015

6.7

1965

6.8