2003

6.1

2014

5.3

6.0

2017

6.5

2023

6.0

2014

6.9

1953

5.6

1975

5.7

1993

6.6

2000

5.2

2016

6.7

2020

6.8

2013

6.1

2020

6.5

7.8

1999

6.6

2023

9.1

1990

5.8

2011

6.9