1990

6.1

7.8

2015

7.4

2014

5.6

2011

7.5

2003

7.2

2023

6.5

1960

7.4

1992

5.7

1991

4.8

2019

6.8

2015

5.4

2007

7.2

2014

7.6

2006

6.6

1965

7.8

1962

7.7

2017

6.8