2000

6.3

2002

9.5

2012

9.4

1974

6.5

1966

6.2

1981

6.6

2000

6.2

2001

6.5

1932

6.4

1953

7.3

1987

7.4

1969

4.7

1982

6.7

2007

6.5

1992

6.4

1990

6.3

2002

7.0

2009

7.1

2011

6.4

2021

8.2