1994

7.3

1970

7.3

1990

6.3

1985

7.2

1986

5.8

2000

6.4

1949

7.9

2006

6.1

2005

6.6

2006

6.0

2003

6.9

2009

6.2

2023

7.5

1984

6.9

1990

5.1

2008

5.5

1965

7.5

1982

7.4

1988

5.8

2022

7.2