1992

6.8

2015

6.0

2008

9.3

2009

6.1

1989

6.0

1990

6.9

2018

3.4

0.0

2019

8.3

2024

9.0

2004

8.0

1999

9.5

2017

5.5

2012

7.0

2017

7.7

2020

7.9

2002

4.8

2021

7.2

1977

7.0