1979

6.8

1968

7.3

2024

8.7

1983

6.9

1977

8.2

2015

7.1

2007

7.3

1990

6.9

2001

7.7

1992

7.2

1991

7.3

1994

6.9

2000

6.6

2022

8.5

1999

7.4

2009

7.3

1992

6.7

2017

7.3

1987

6.6

2006

8.2