2004

5.7

1985

8.3

1989

7.9

1997

7.9

2015

7.9

1994

8.7

1990

7.4

1972

8.7

1979

8.2

2023

8.4

2007

7.1

1987

7.3

2009

7.6

2018

7.4

2017

6.1

2016

7.6

1992

6.8

2006

7.5

2013

8.1

1995

8.0