2001

2.7

1975

5.0

2022

6.5

1977

5.6

1991

5.9

1978

4.9

2019

4.2

1985

5.0

2018

4.5

2018

6.6

2016

6.3

2006

6.2

2006

6.4

2007

6.0

2004

4.1

2006

5.5

1986

6.1

1987

6.9

1991

7.7

2006

6.2