2009

7.7

2014

7.1

2023

6.9

2022

9.3

2020

7.3

2017

3.7

2020

7.2

2018

4.3

1993

6.5

2005

7.5

1996

5.4

1987

4.3

1992

6.3

1988

7.7

1980

5.8

1973

6.6

1987

0.0

2020

8.1

2015

5.8

2019

7.6