1997

6.4

1997

7.7

2022

5.6

1990

6.6

1996

5.5

1998

7.5

1998

7.8

2002

6.0

2002

6.0

2015

6.1

1979

7.3

1983

6.3

1989

7.0

1950

8.1

1971

7.7

1967

5.3

1934

7.5

1964

7.5

1994

6.7