1987

6.3

1997

5.7

1958

6.9

2019

5.8

1987

5.0

1953

5.0

1990

6.5

2024

6.3

2023

6.7

1994

6.0

2017

5.9

2014

7.0

2019

4.8

1972

5.0

1982

7.6

1999

7.7

2002

8.4

1993

8.6

1955

7.3

2000

7.4