2004

7.3

1997

6.7

2012

8.5

2021

8.4

2022

6.7

1983

7.3

1999

7.9

2004

8.5

2000

6.7

2004

8.0

2020

7.1

1991

7.6

2017

0.0

2016

7.6

1984

7.3

1983

0.0

1988

0.0

2015

7.1

2001

6.9

1969

7.8