1971

6.4

2004

7.6

2019

6.8

2022

7.3

1981

6.7

2000

5.1

2006

5.4

1987

6.9

2020

0.0

2018

7.3

2005

1.2

2009

6.1

1968

6.8

1998

5.7

1977

6.1

2009

5.7

1980

2.8

2024

0.0

1953

3.8

1957

5.7