1981

7.4

1984

7.3

1973

6.9

2015

4.5

1989

8.0

1922

7.7

2001

6.2

1999

8.5

2005

7.1

2002

6.7

2006

6.6

2015

6.3

2024

0.0

2007

6.6

2006

7.4

2024

0.0

2017

2.0

2014

6.1

1978

4.2

1992

7.4