1986

5.5

2005

6.3

2011

3.1

1980

7.5

1999

6.5

1975

5.6

2024

0.0

2017

7.2

2013

6.7

2007

5.6

1987

0.0

1969

3.0

2009

6.6

1997

5.9

2002

6.8

1985

5.8

2019

6.4

1983

5.4

2001

5.1

1980

5.1