1980

7.1

1967

7.7

2009

7.5

1993

7.0

2013

7.6

2021

8.4

1970

8.2

1984

5.4

1962

7.9

2014

7.6

2010

7.0

1965

8.0

2007

7.1

1987

7.2

1971

6.4

2012

5.5

2005

7.2

1986

7.4

2018

7.2

1993

6.1