1986

5.8

2018

6.2

2013

6.5

2020

7.2

2014

5.6

1973

5.9

1972

8.7

1973

6.5

2004

7.9

2013

7.9

2007

7.6

2009

4.7

2021

7.8

2015

7.5

1988

6.2

2010

7.8

2003

7.1

2024

7.5

1998

7.4

2019

5.7