1979

7.3

2005

7.6

1992

6.9

1984

7.0

2024

8.5

2014

6.8

2011

7.6

2011

7.8

2009

8.3

1972

7.3

2025

7.4

2002

7.5

2004

8.3

1972

7.4

2009

6.8

2008

8.9

2007

7.8

2010

7.2

2024

8.4

1993

7.0