1963

6.9

2019

6.5

1999

6.6

2003

6.8

1994

6.6

1988

6.5

1966

6.1

2014

7.0

2006

6.8

2011

6.6

1980

5.9

1996

6.5

1980

6.4

1978

5.9

2013

6.7

2023

7.1

1984

7.2

2018

6.7

1976

6.2

2021

6.1