2020

5.8

1989

7.6

1979

6.4

1983

7.2

2003

5.7

1998

8.6

2011

7.3

1986

6.4

1975

7.9

1964

7.4

1963

7.3

1949

6.9

2012

6.8

1988

5.0

1984

6.5

2009

7.3

2015

7.5

1971

7.1

1973

7.3

2022

3.9