1973

6.8

1992

6.8

1972

7.5

1990

6.9

2015

5.7

2016

7.1

1990

7.2

2005

8.1

1987

6.2

2022

7.0

2021

9.0

2017

8.5

2011

5.9

2013

9.5

2007

3.8

2017

4.9

2004

6.6

2016

7.1

2010

0.0