1987

5.5

1989

7.8

2006

8.2

1972

8.7

1994

8.5

1998

7.9

2017

8.2

2023

7.6

1993

8.6

2018

7.5

1999

8.2

2019

7.7

2011

8.3

2014

8.0

2014

8.5

1985

8.3

2017

7.6

2014

7.9

2015

6.7

2023

8.1