2019

7.5

1989

5.1

1983

6.5

2007

6.4

2008

6.1

1987

6.9

1977

6.7

1994

6.2

1995

5.9

1973

7.0

2005

4.3

2012

7.3

1965

7.1

1987

5.9

1977

5.9

2005

4.5

2005

5.1

1941

7.3

1993

5.8

1979

6.7