1993

6.6

2004

8.6

1992

5.8

2004

8.3

1996

5.4

1999

7.4

1983

8.1

2001

8.3

2005

7.8

1998

7.2

2008

7.9

1972

7.9

2024

6.3

2016

8.0

2022

8.2

2016

7.1

2015

6.9

2004

9.5

2012

5.6

1997

7.5