1985

6.3

1995

7.0

2007

7.0

2007

6.4

2009

5.8

1991

7.4

2020

10.0

2021

5.0

2002

5.6

2012

6.2

2014

6.7

2024

0.0

1967

0.0

2010

0.0

2013

0.0

2019

7.1

1973

7.2

1979

1.0

1976

0.0

2025

0.0