2021

6.0

1999

6.5

2015

6.7

1993

6.1

2013

6.9

1988

5.7

1994

6.8

2020

6.4

1969

6.6

1971

7.4

1993

7.0

2023

6.7

1991

6.8

2007

7.2

2005

7.4

2011

7.1

2002

5.2

2014

5.6

1967

7.7

1954

6.7