1982

6.0

1998

5.5

1997

6.8

1960

5.3

1996

6.3

2005

7.5

2006

0.0

1992

7.0

2018

5.0

1968

6.0

2021

7.9

1997

7.6

1994

0.0

1985

7.7

2022

7.0

2003

7.6