1992

6.2

2020

6.9

2002

7.4

2020

6.1

1988

6.5

1969

5.1

2011

7.1

2008

5.8

2017

5.5

1966

6.3

2014

7.2

2009

7.3

2021

5.4

2020

4.7

2018

4.5

1994

6.2

2005

6.5

2024

7.3

1971

6.8

1994

5.9