2021

7.0

1983

8.1

1977

8.2

1985

7.9

1990

7.8

1976

7.9

1984

8.5

4.4

2009

7.6

1980

9.2

2004

9.5

2011

8.5

2010

7.9

2020

8.2

1992

7.0

2019

7.0

1961

7.5

2011

7.1

2015

6.0

1972

7.7