2011

6.2

1971

6.1

2024

4.8

1968

6.3

1994

5.8

1997

6.4

1997

6.5

1991

6.7

1985

6.7

1977

6.8

1992

6.1

2002

7.6

2000

7.3

1994

6.3

1998

6.5

1997

6.7

1995

5.2

1996

5.0

2015

5.5

2003

5.4