2004

7.1

2015

6.4

2009

7.5

1991

5.1

2015

5.8

2023

6.5

1975

4.5

2021

6.2

2015

7.9

1994

7.3

2024

6.3

1982

5.8

1968

6.5

2012

9.3

2024

6.1

1990

5.2

2020

6.5

1993

5.7