2007

6.5

2019

5.0

2001

7.0

1993

6.6

1968

7.1

2000

2.0

1999

7.3

1992

7.0

2002

7.3

1993

7.1

1992

6.5

2015

5.0

2019

7.1

2019

7.0

1997

8.0

1991

6.4

1977

6.8

1999

7.9

1990

7.4

1998

7.8