1993

7.9

2010

7.7

2017

8.1

2021

8.4

2023

8.6

2009

5.9

1973

6.8

2021

6.9

2003

7.6

2001

7.9

2010

7.8

1979

6.8

2005

5.6

1982

7.6

2016

6.7

1985

7.5

2021

6.6

2024

7.8

2011

8.1

2005

7.8