2003

7.4

2002

6.6

1999

7.4

2016

6.0

2017

5.9

1993

0.0

2002

6.3

1988

5.0

2001

6.8

1962

7.7

2003

7.2

1997

6.7

2013

4.0

2014

6.5

2013

5.4

2016

0.0

2020

6.6

2020

5.2

1992

4.0

1986

5.8