1973

5.1

1971

7.5

1981

7.1

2001

6.1

2000

6.3

2019

6.0

2017

4.8

2005

6.3

1977

0.0

1992

0.0

1973

5.5

2006

6.5

2021

4.9

1995

4.0

2003

5.6

1970

7.3

1968

3.7

1973

6.5

1989

6.6

2019

0.0