6.1

0.0

1984

6.7

2013

7.7

2018

6.0

2015

5.2

1997

7.5

2020

7.0

2014

5.6

2021

8.5

2009

7.7

2021

5.7

2022

6.3

2010

5.5

1996

5.7

2013

6.1

1979

7.4