1996

6.9

1991

7.1

1985

7.1

1996

7.4

1963

8.3

1990

5.8

1986

7.4

2004

5.8

1996

7.9

1966

6.2

1974

6.6

1988

7.2

1975

6.1

2002

4.4

2006

6.8

2004

6.5

2019

5.3

1922

7.7

2003

5.1

2006

5.2