2018

6.8

2011

6.4

2015

7.0

1970

5.4

1971

4.1

1982

5.5

2002

4.3

1980

7.0

2024

6.0

2007

5.0

1978

2.0

1968

5.7

1968

6.0

2014

6.7

2022

6.3