2009

6.6

1988

5.5

2021

5.5

2007

5.4

2018

6.4

1996

7.2

1975

6.0

1985

8.2

1969

5.1

1967

7.1

2019

7.2

1993

5.5

2005

6.6

2022

8.6

2014

5.3

1979

6.1

2007

6.1

2015

6.9

1920

6.7

2006

7.6