1993

7.5

1994

8.7

2023

8.1

2019

8.1

1972

8.7

1994

8.5

1985

8.3

2012

7.8

1999

8.4

2006

8.2

2010

7.7

2016

7.6

1997

7.9

1980

8.2

1999

8.5

2018

8.0

2015

7.6

2019

7.8

2021

7.8

2014

8.5