1996

6.9

2014

7.1

1954

8.5

2004

7.4

1986

7.7

1999

6.8

1985

7.8

2006

5.0

2007

6.7

1992

7.4

1999

7.0

2006

7.2

2008

5.7

2008

6.6

1951

5.8

2002

6.1

1987

7.3

1962

7.2

1997

6.9

2019

2.0