1993

6.1

1968

6.9

2017

6.0

2010

9.1

1996

8.0

2012

5.7

1982

5.8

2022

7.0

2023

5.6

5.4

1920

6.7

5.0

2024

6.3

2024

7.3

2017

5.7

2022

7.4

2014

5.6