1997

7.6

1994

8.5

1985

7.9

2003

5.3

2019

3.5

2009

3.0

2024

6.0

1998

3.1

1975

5.9

1998

5.9

1961

6.3

1999

5.4

1984

3.7

1977

4.6

2022

5.0

2017

5.3

2003

4.9

2005

5.2

1992

5.0

1996

5.0