2007

4.2

2008

5.5

2002

6.5

1975

7.2

2003

6.6

2004

6.3

2016

5.8

1981

5.2

2003

6.1

1999

6.2

1991

6.6

2000

6.2

2000

6.2

2023

5.8

1989

3.9

1981

6.4

2003

5.9

1984

6.4

2022

6.9

2008

4.6