2019

7.3

1993

5.5

2009

6.0

2014

5.2

2006

5.2

1995

3.8

2005

3.7

2015

4.6

1992

6.0

1985

3.8

1999

5.2

2002

6.8

1993

6.3

2007

5.8

1973

6.4

1970

5.7

1974

1.5

1973

3.7

1975

5.8

1967

5.3