1993

6.3

2019

5.4

2004

6.8

1993

7.4

2019

5.7

2002

8.1

2003

6.9

1999

7.4

2006

5.0

2008

7.1

2022

6.0

1920

6.2

2009

6.3

9.4

1982

7.6

2021

6.4

1977

7.0

1944

6.9

2019

6.4

1999

5.7