1980

7.0

2012

9.3

2021

7.1

1982

5.9

1949

7.5

2008

7.7

1968

6.7

1965

7.9

1980

8.4

2023

6.1

1990

6.3

2012

6.0

2003

6.1

1990

6.0

1974

6.6

1988

5.8

1985

6.9

2024

6.2

2014

5.6

2015

8.1