1999

6.5

2004

5.4

2003

6.6

2005

7.0

2020

10.0

2009

5.9

1976

4.9

2007

7.2

2005

5.6

1956

6.7

1999

6.7

1985

4.4

1988

7.1

2024

0.0

2014

5.9

1960

7.4

1997

7.5

2001

6.2

2021

0.0

1987

6.8