1975

5.1

1977

2.5

1986

5.0

1993

5.5

2002

5.0

2003

1.5

2009

5.8

2022

6.4

1973

0.0

1980

5.1

1976

5.0

2007

0.0

2006

5.2

1988

5.4

2005

3.7

1992

6.0

1980

4.8

2007

5.8

1973

6.4

1989

4.5