1996

7.1

1972

6.2

2012

7.7

2021

6.1

2019

6.7

1987

6.0

2023

6.4

1992

6.5

2023

6.4

1965

7.2

2009

6.3

1974

6.3

1974

6.6

2011

6.4

1983

4.5

2017

7.0

2024

6.6

2023

6.5

2024

6.8