1998

0.0

1950

6.9

2001

4.3

1990

6.0

2014

7.3

2005

5.3

1989

7.0

1985

7.8

1962

7.8

1963

5.8

1999

5.5

1980

7.0

1993

5.7

1992

4.5

1999

2.0

1993

7.7

1997

6.4

2019

6.1

2013

4.0

2020

7.0