1995

7.2

2000

2.0

1999

7.0

1983

6.3

1972

7.0

1992

7.5

2021

7.7

2006

4.7

2022

5.9

2015

7.4

2011

7.1

2015

5.9

2024

7.1

2015

6.8

2014

5.4

1987

5.5

2019

6.4

2008

7.7

2022

6.8

0.0