1997

6.1

1986

0.0

1985

2.0

1969

3.0

1989

4.5

2019

6.5

2009

6.6

2019

0.0

2005

6.3

2013

6.7

2017

7.2

1985

5.8

1999

6.5

2022

5.5

2011

3.1

2001

5.1

2007

5.6

1983

5.4

2016

4.0

2016

5.7