1980

7.8

2020

0.0

1990

0.0

1982

5.0

1992

0.0

1990

7.7

2001

7.7

2004

7.3

2006

7.8

2006

6.7

1973

7.5

2017

7.4

1998

7.4

1982

9.0

1998

2.7

1991

3.0

1997

6.1

2011

6.6

1946

6.3

2019

5.6