1993

7.2

1990

6.4

2007

6.3

2001

6.5

2015

5.0

1996

6.4

2006

6.2

1992

7.0

2007

5.2

1989

6.3

1987

0.0

2022

4.0

1961

7.7

2005

6.9

2020

5.6

2013

4.7

1997

7.4

2021

0.0

2005

5.9

2008

4.7