2006

5.8

1980

5.7

1969

5.0

2013

5.5

1997

5.0

1971

7.1

2007

6.0

1986

6.1

1977

7.0

2018

6.0

1992

7.2

2021

5.9

1989

6.9

2005

5.6

1990

6.2

1995

5.1

2022

6.3

1991

6.7

1985

6.5

2002

7.8