1984

6.2

1988

7.0

1984

7.1

1990

6.5

2007

4.8

1994

5.3

1988

7.1

2003

6.1

2013

7.7

2016

7.0

2025

5.5

1989

2.0

2014

5.9

1946

7.5

2010

0.0

2018

5.9

1980

2.8

2023

4.2

1999

6.8

2021

7.0