2022

6.6

2002

5.4

2005

6.9

1988

6.1

1990

6.0

1985

7.6

1996

6.0

1998

6.1

2002

6.8

2014

6.7

2005

7.1

2008

8.5

1972

8.7

1974

8.6

1990

7.4

1993

6.5

2006

8.2

1960

7.2

2001

6.1

1997

7.0