0.0

2004

8.1

2019

7.1

1983

5.0

1999

9.5

1978

6.8

1987

4.3

1993

7.0

1992

7.5

1995

7.3

2014

6.7

2010

6.2

2006

8.0

2014

6.4

1999

6.0

2014

7.6

2014

7.9

2021

7.2

2015

6.2

2022

6.7