1969

5.0

1992

5.6

2010

5.5

2013

5.5

1993

6.9

2019

7.5

1969

7.1

1989

6.0

2020

5.0

2005

7.0

2020

0.0

2003

6.5

1977

6.9

1992

7.3

1991

5.9

1980

5.7

1976

7.5

2014

7.5

1995

5.1

1990

0.0