0.0

1990

6.0

2002

5.2

2016

5.9

2000

6.9

2003

6.7

2023

5.3

1998

7.7

1995

5.0

1951

7.2

2002

6.3

2006

6.5

1994

5.3

2003

4.9

1999

7.9

2004

5.7

2000

8.0

2010

6.7

1983

6.5

1997

5.4