1980

6.3

1965

6.8

1999

6.8

1996

7.3

1975

6.9

2013

6.5

2011

6.6

2024

7.0

1984

7.2

1997

6.7

1968

6.9

1974

6.0

1991

7.5

1997

7.6

1956

7.1

1948

7.2

2019

5.7

1971

7.4

1982

6.7

2020

7.3