2015

7.4

2020

4.7

2014

5.9

2023

6.5

1975

4.9

1969

7.6

2021

5.4

1993

6.2

2001

6.7

1978

6.9

1989

6.7

1961

6.9

1980

6.2

1895

5.4

2008

8.0

1961

7.1

2018

8.4

2022

6.0

1982

7.6

2002

8.8