2001

6.0

1971

8.2

1950

7.6

1979

7.3

2018

6.1

1992

8.1

1982

8.1

1994

8.7

1999

5.5

2007

6.1

2013

7.5

2004

6.2

2019

8.5

1969

7.6

1963

7.2

1987

7.1

1965

7.5

2020

6.7

2019

8.1

1972

7.9