1993

6.5

2019

6.6

2017

6.6

6.6

1972

6.5

1982

6.7

1999

6.8

2003

6.6

1966

6.2

1953

7.2

2006

6.8

2011

6.8

1955

6.2

1969

5.1

1988

6.3

2017

6.9

2020

6.5

1980

6.4

1949

6.2

7.8