2021

6.1

2019

6.8

1988

6.5

2000

6.6

2008

5.8

2022

7.2

2011

7.4

1996

6.7

2003

6.8

1963

6.9

1992

5.7

2001

6.0

1983

6.9

1999

5.8

1992

6.9

2003

7.2

1988

6.2

1964

7.0

1984

7.0

1974

5.8