1993

6.5

1972

6.3

1985

6.1

6.6

2025

5.8

2008

6.7

2024

6.0

2020

6.4

2015

6.7

2024

6.6

2021

8.2

2011

6.4

2014

6.9

1969

6.6

2016

7.2

1972

7.7

2014

7.1

2010

7.5

1990

5.7

1985

6.9