2007

4.5

2005

5.4

1987

6.7

1986

6.7

2002

4.4

1989

6.8

2000

5.0

2021

4.1

2007

5.9

2023

3.4

1993

6.8

1996

7.5

2016

7.0

1997

7.3

1981

6.4

1988

5.5

1989

4.9

1993

4.6

1999

6.2

1983

6.5