2001

5.9

2007

7.6

2021

7.2

2020

5.0

1981

6.0

2002

4.8

1987

6.9

1980

6.1

2006

6.5

2003

5.5

1999

6.5

2001

6.6

2014

5.6

1978

7.2

2000

5.7

2013

6.2

2003

5.7

2005

0.0

2019

0.0

2005

6.1