2015

6.0

1974

6.9

2012

7.0

1955

7.2

2017

6.8

1983

5.8

2023

6.0

2007

6.7

1990

7.2

1965

7.9

1979

7.4

1992

7.7

2008

7.9

1997

7.0

1990

6.5

2022

5.5

1978

7.6

2012

5.7

2010

5.3

2019

7.5