1997

6.9

1966

6.1

2013

6.1

2019

6.5

2020

6.5

1953

7.2

1999

6.6

2003

6.2

1971

6.0

1990

7.4

2011

6.9

2012

6.4

2008

5.7

2016

6.7

2014

7.0

2023

7.1

2022

6.8

2008

5.4

1996

6.5

2000

6.6