1993

3.7

2023

7.0

2002

7.6

2010

6.4

2005

6.7

1974

7.5

1985

7.6

1984

6.4

2005

5.8

2003

6.4

2019

5.8

2004

7.1

2023

6.6

2004

6.4

2002

5.6

1988

6.1

2003

6.1

2001

5.0

1979

6.4

1994

2.8