1984

7.2

2016

5.6

1951

7.1

2023

6.8

1987

6.0

2021

6.0

2005

4.7

2014

6.8

1966

6.5

2014

5.8

1965

7.0

2015

6.3

2017

6.1

2020

7.4

1968

6.2

2019

7.4

2015

4.8

1958

7.6

2016

6.7

2020

7.1