1989

9.5

2005

8.8

1978

6.6

2003

8.6

1998

8.0

2004

7.7

2002

6.0

1992

6.6

2000

6.2

1993

7.9

1960

7.5

1987

6.9

1990

8.6

1996

7.5

1972

6.4

2016

8.0

2022

6.0

2014

0.0

2023

0.0

2023

5.7