2001

7.2

1974

5.5

2016

0.0

1964

7.3

2006

6.9

2005

6.8

1992

5.4

2007

6.4

2004

5.1

2003

5.3

1997

7.1

1998

6.1

2003

7.3

1992

7.0

2017

6.5

2003

7.4

1999

6.2

1988

5.1

2005

6.8

2016

4.5