1993

8.0

2006

6.1

1999

7.4

2025

9.0

2022

7.2

2004

8.0

2021

6.9

1979

0.0

2017

5.9

2017

5.0

1989

5.8

2006

6.8

1987

7.5

1998

6.4

1966

6.1

2005

7.6

1990

7.0

2007

7.1

2014

8.0

1990

8.5