2001

0.0

1980

1.0

1999

6.3

1960

8.4

2006

6.6

1978

7.5

2004

7.1

1984

7.1

1990

6.5

2006

7.0

1991

5.9

2017

4.3

2021

7.0

1931

7.2

2018

10.0

1955

6.0

2003

1.0

2006

5.9

2007

5.8

2003

6.0