1985

5.8

2005

6.1

2005

6.6

2001

7.6

2007

7.2

2021

10.0

1987

6.9

1977

6.3

2001

6.3

2017

5.3

2025

8.0

1985

6.2

1979

6.3

1963

7.1

2003

5.7

2006

5.5

1999

6.7

1999

5.5

1998

7.7

2020

5.8