1996

8.0

1976

7.6

2017

7.0

2007

6.1

2006

7.8

2015

5.1

2005

7.5

1987

7.7

1995

7.6

1987

6.1

1994

4.4

2021

5.4

2001

4.3

2014

7.0

1964

5.5

2005

4.2

2002

7.1

2005

6.3

2022

0.0

1983

6.6