1927

7.8

2005

6.9

1990

6.0

2000

7.4

1989

7.0

2018

5.0

2024

5.8

2014

6.2

1991

7.3

1975

7.9

2006

6.3

2001

6.4

2010

6.2

2007

6.9

2012

7.1

2024

6.2

1989

5.2

1978

6.6

1987

6.3

2002

6.8