2006

6.6

1998

7.2

2008

6.8

2004

6.8

2017

7.3

1977

7.7

1993

7.0

2021

6.8

1961

7.7

1976

7.8

1979

7.3

1982

6.9

1985

7.1

1990

5.8

2004

8.0

2005

7.4

1988

7.5

2002

6.3

2022

2.0

2004

5.0