2019

6.8

2003

7.8

1971

6.4

1997

7.5

2007

6.7

1989

6.6

1974

5.5

2007

5.0

2008

6.2

1974

6.8

1992

7.5

1956

6.2

2007

7.5

2008

5.9

2007

7.3

1994

6.1

1987

6.0

1973

7.1

2007

6.8

1993

6.1