2020

6.6

1980

8.2

1993

7.4

2006

7.7

2003

7.8

2001

6.2

1972

7.1

2001

6.7

1971

6.4

1997

7.6

2014

6.9

1995

7.3

2004

6.6

2006

6.4

2001

7.1

2006

5.8

1996

5.9

1975

5.3

1988

7.7

2005

7.2