1978

7.4

1983

6.5

2005

6.7

2000

7.1

1996

7.0

1985

6.1

2007

5.5

1964

6.2

1988

5.6

2000

0.0

2011

5.0

2000

7.6

1987

7.3

2023

0.0

2019

9.0

1982

4.5

1935

7.2

2017

5.9

1984

6.7

2014

4.2