2006

7.4

2020

6.7

2017

6.4

7.1

2019

6.7

2022

4.3

1992

6.9

1993

6.9

2017

7.3

2023

7.0

2016

6.4

2017

6.7

1970

5.0

2007

6.5

2022

7.6

1982

7.6

1976

7.8

1990

5.8

1989

5.5

1985

5.3