1993

6.6

2021

6.7

2016

1.0

1996

6.2

1996

6.5

2011

8.1

2010

7.9

2000

7.6

2002

8.6

2006

7.9

2005

7.9

1987

7.1

1994

7.6

1975

7.3

1992

5.6

1970

6.1

2007

0.0

2002

0.0

1996

8.0

2024

6.3