2003

5.7

2003

6.1

2016

5.6

1996

5.9

2005

6.2

2016

4.5

2000

6.1

1972

7.3

1986

6.7

1988

5.4

1997

6.2

2001

6.6

1995

6.2

1992

5.4

2006

6.4

2017

6.2

1986

6.7

1999

5.6

1987

3.1

1982

5.3