1992

6.4

1993

6.6

1968

6.9

2017

5.9

1988

5.5

2002

7.1

1990

6.3

2023

9.6

2016

6.2

2024

6.2

2011

5.6

2004

6.6

1958

5.2

2021

7.5

2024

7.0

1982

8.0

2013

8.4

1979

4.5

2004

5.7

2014

6.7