1990

6.1

1992

6.4

1964

7.4

2017

5.9

2011

5.7

2012

6.4

2020

6.8

1962

7.3

2007

5.7

1983

7.5

2003

7.2

2025

6.8

2002

5.2

1988

6.2

1993

6.2

5.4

2009

5.3

1958

6.8

2021

9.7