2000

5.2

1985

2.4

2004

6.8

1930

7.2

2005

5.9

2022

5.0

1996

7.4

1999

7.5

2007

7.6

1980

6.4

2001

6.2

1990

6.9

1964

5.2

1995

5.1

1988

7.1

2000

7.3

2008

6.8

1999

6.5

1968

5.8

2021

6.8