1989

6.0

2010

7.0

2020

7.0

2020

7.2

2024

9.4

2017

9.4

2014

7.5

2010

7.0

1992

7.6

2007

3.3

2021

6.4

1987

7.3

2014

6.9

2008

10.0

1960

5.3

1954

6.9

1908

6.4

2015

6.6

2014

7.0