1995

7.0

2003

6.5

1993

7.5

2002

6.9

1990

7.5

1992

4.7

1996

6.0

2023

6.1

2024

5.9

2016

2.7

1997

6.8

1999

5.5

2006

7.0

1984

6.0

1924

6.8

1970

5.0

1955

7.9

2007

5.8

2008

5.5

2022

6.2