1990

6.1

1985

8.9

2014

6.3

2019

2.5

10.0

2009

6.0

2001

5.0

2024

7.0

2009

3.0

6.0

1973

7.0

1979

8.0

2007

4.7

1972

4.8

2011

6.0

2014

5.0

1941

5.5