2013

6.0

1998

6.9

2002

6.2

1997

6.8

1997

6.8

1992

6.9

2021

7.1

2001

7.8

2002

7.4

1962

6.3

1998

4.0

2010

0.0

1978

6.6

1980

5.4

1993

4.9

2016

5.9

1997

5.6

2021

5.1

1986

6.6

1974

6.8