1977

6.2

1958

7.4

1973

6.5

1990

0.0

1996

6.4

2013

5.5

1999

7.5

2007

5.4

1980

6.0

1974

4.4

1999

5.6

1986

7.0

1990

7.1

1990

6.7

2001

6.7

2020

8.0

2009

7.0

1993

5.1

1979

4.8

2009

8.0