1954

5.5

1999

6.0

1981

7.0

2000

4.3

2006

4.9

1977

7.5

1985

6.2

2021

6.9

2020

6.4

1992

3.8

2004

8.4

1958

6.5

1982

6.5

2015

3.2

1989

7.3

1990

6.9

2010

6.4

1993

7.0

2023

10.0

2018

7.9