1999

8.1

1989

7.9

1966

6.4

2005

7.1

2001

6.5

1973

6.6

1987

7.2

1990

7.4

2014

0.0

2005

7.9

2006

8.1

1966

7.3

1993

7.1

1995

7.0

2019

6.2

2010

7.6

2009

7.6

2021

6.0

2007

7.1

2010

7.5