1955

6.1

6.3

1993

6.1

2008

5.2

1971

7.1

2021

5.5

2018

5.6

2009

7.6

2007

10.0

2012

8.2

1985

8.0

2016

6.7

2013

6.2

2019

6.0

2020

6.3

1968

6.9

2023

6.5

1964

6.5