1993

7.1

1978

7.5

1968

7.6

2018

6.3

2019

5.2

1973

6.9

1990

1.0

1961

0.0

2021

7.5

2014

0.0

0.0

2019

10.0

1997

6.6

2020

5.2

2021

10.0

2014

0.0

2017

5.8

2018

5.0

2025

0.0

2015

7.8