1984

6.5

2010

5.6

2003

5.7

1977

6.7

0.0

2004

4.7

2015

8.4

2006

7.4

1990

6.1

2004

6.2

2001

7.2

1999

8.2

1963

7.3

2011

7.6

2024

6.2

2021

9.3

1955

7.3

2004

9.9

1927

7.1

1970

7.7