2015

7.8

2011

7.4

2024

8.4

1999

7.4

2019

8.2

2000

6.9

2005

8.1

2019

8.1

1990

8.0

1987

6.6

1998

6.9

2004

5.8

2006

8.1

2022

8.6

2017

7.7

1996

7.1

2022

8.5

2018

8.2

1973

8.0

2021

7.9