1972

6.6

2008

6.8

2017

0.0

2003

6.0

2016

7.2

1998

1.0

1986

5.0

2001

7.5

2015

6.0

2019

6.9

2016

7.8

1991

5.6

2010

8.1

2021

8.0

2002

0.0

2003

6.0

1998

6.8

2017

10.0

1970

7.3

2011

0.0