1994

4.7

2002

5.4

1999

5.5

1972

6.1

1973

5.1

2007

6.2

2004

5.6

2014

5.8

2001

5.9

2023

7.4

2007

3.7

2003

7.2

1990

7.4

1996

5.7

1998

5.7

2017

5.7

1999

6.8

1988

4.4

2020

7.2

1988

7.2