1986

6.1

1996

7.7

2004

7.3

1997

6.8

1992

7.1

2011

7.2

2002

6.2

2012

5.5

2023

0.0

2000

6.6

2004

8.5

2022

0.0

1999

8.5

2004

8.1

2021

0.0

2006

8.2

1997

7.0

2008

8.3

1969

7.8

2020

8.2