1996

6.8

1997

7.9

2010

8.2

1985

8.3

1984

7.3

2019

7.4

1998

8.1

2015

7.9

2014

8.5

2012

6.9

2005

7.7

2019

8.1

2012

7.4

2023

8.0

2002

7.1

2011

7.0

1993

7.8

1985

7.7

1995

8.0

2010

6.4