1994

5.2

1993

6.9

1993

6.3

1981

6.5

1965

7.6

1967

5.5

0.0

2014

5.8

2017

6.6

2021

7.4

1975

6.8

2012

6.0

2006

5.0

1946

6.8

2015

6.5

1966

5.5

1953

6.9

1947

6.2