2010

4.5

1988

5.9

1990

4.4

2005

5.2

1985

6.8

2015

6.4

2017

6.6

1989

5.7

2000

5.2

1988

5.5

1995

5.6

2018

5.8

2024

5.8

2018

6.2

2019

6.7

6.5

1965

6.3

1969

6.6

1989

5.8