2006

5.1

2018

6.0

1975

6.8

1982

7.5

1959

7.7

2009

4.8

2007

5.5

1998

5.1

1984

7.1

2004

7.1

2006

5.0

1988

6.8

2019

7.3

1999

6.2

2007

6.8

2013

6.1

1955

6.1

1970

6.4

2009

7.4

2023

6.5