1990

5.1

2011

5.5

2009

5.9

2007

5.2

2023

6.3

1966

6.7

1998

6.3

2003

7.1

2003

6.7

2017

0.0

1992

5.7

1982

7.5

2006

6.2

2008

5.9

2022

6.4

1998

6.6

1997

5.8

1973

7.3

2003

6.3

1993

6.5