1994

6.8

2012

6.1

1986

6.0

1978

7.2

2024

7.8

1983

7.7

1960

5.3

2011

6.4

2015

5.4

2005

6.9

2022

7.1

1979

7.0

2007

8.0

2017

6.8

2005

7.3

2019

7.1

1963

7.2

2016

7.2

2014

7.8

2019

6.5