1991

6.8

1984

7.0

2001

7.8

2004

7.3

1982

5.0

2005

7.1

2006

7.8

1988

8.0

1978

0.0

2016

3.5

1990

7.7

1982

5.5

1995

5.9

2017

6.6

1973

0.0

2025

7.4

2010

5.6

1961

6.0

1958

5.7

1955

6.0