2005

6.1

2008

8.5

2019

7.2

2017

7.0

2015

6.3

1996

7.3

2009

0.0

2021

7.9

2019

6.9

2000

5.2

1979

5.7

1991

6.7

1982

6.5

2008

6.9

1996

7.8

1995

6.0

2022

0.0

2023

7.2

2000

7.0

2004

7.4