1999

9.1

2013

6.1

2022

6.3

2019

7.4

2021

7.1

2023

6.1

1976

7.8

1993

4.3

2018

6.5

1989

5.9

1999

7.2

2013

6.1

2023

7.4

1984

6.5

2014

6.6

2003

7.2

2002

6.9

2005

5.7

1985

6.9