1976

0.0

1998

5.6

2009

6.1

1993

6.9

2009

6.9

2016

6.7

2015

6.7

2013

6.2

2007

4.9

1975

6.2

1997

6.1

2009

7.1

1979

5.7

2023

5.8

2004

5.8

1954

7.5

2025

7.9

2017

10.0

2015

0.0

2020

6.3