1992

8.0

1993

6.1

2010

7.0

2013

7.6

2022

5.2

2019

5.7

1984

6.2

1895

5.5

2020

5.8

2024

7.3

2024

7.0

1984

7.1

1968

6.9

1972

7.4

2022

6.5

1975

6.0

2022

6.8

1996

6.5

6.8