2021

8.5

2005

9.0

2019

0.0

2018

7.8

2018

8.2

2017

6.0

2016

7.2

1997

4.7

2013

0.0

2001

5.6

2000

7.0

2003

8.2

1998

6.9

1981

5.5

1997

8.1

1966

7.6

1983

8.1

1998

7.4

2005

7.1

2000

5.6