2015

6.7

2018

6.0

2002

4.5

2001

7.9

1977

7.2

1990

6.2

2023

5.3

1969

7.3

2020

6.9

2003

6.2

1987

7.9

2020

7.8

1993

6.4

2017

7.4

1989

7.5

2005

6.0

1922

7.6

2022

6.7

1987

6.0

1935

7.3