2014

5.7

2020

6.7

1987

6.0

2017

6.9

2019

6.6

2011

6.4

1998

6.5

2009

5.9

2008

5.8

1980

5.9

1989

5.5

2014

5.6

1965

6.4

2023

6.1

2011

5.6

2020

6.5

2017

6.6

2022

6.0

1984

7.2

1954

6.7