1995

7.0

2003

6.5

1984

8.4

1993

7.5

2002

6.9

2006

5.7

1988

6.2

1992

4.7

2023

4.2

2022

0.0

2021

6.7

2016

2.7

2005

6.8

1999

5.5

2006

7.0

1984

6.0

1978

5.9

1970

5.0

1985

6.0

1974

7.5