1950

8.1

1955

7.5

2021

7.4

1950

8.1

1971

7.4

1963

6.3

1999

7.3

1954

5.9

1952

6.7

1962

7.2

1957

7.2

2015

6.8

1950

7.5

1997

4.5

2013

5.2

1955

7.2

1961

5.4

1955

7.3

1954

7.2

1960

4.7