2005

4.6

1966

6.7

2013

6.1

1997

3.8

1966

7.0

1999

6.6

2015

6.5

2010

5.5

2018

9.0

2015

5.0

1965

9.2

1959

6.6

1927

7.0

1992

5.3

1948

6.0

2007

7.0

2007

10.0

2020

6.0