1992

7.4

1969

6.3

1988

5.0

2001

6.4

1986

2.0

1979

5.4

1976

6.4

1991

7.3

1972

5.8

2003

6.1

2014

6.7

2023

4.6

2020

0.0

2018

4.5

1972

7.1

2013

5.2

2013

6.3

2006

2.0

1986

6.7

2007

6.6