1996

6.4

2011

8.1

2009

8.0

2017

10.0

2002

7.7

2002

6.8

1992

6.5

2018

7.0

2010

9.0

2012

0.0

2021

8.6

2018

6.8

1990

8.5

2022

8.1

1958

5.3

1981

7.6

1992

7.0

2002

7.3

2020

5.0

2013

6.0