2004

8.6

2013

8.1

1992

5.8

1990

7.4

2005

8.1

2009

8.3

2003

8.2

2015

8.9

2017

7.2

2007

8.1

2001

6.6

1993

6.7

2019

7.6

2017

7.5

2024

7.7

1994

7.5

1964

7.4

2020

8.7

2016

8.3

2001

7.2