2001

7.0

1980

6.6

1982

6.4

1994

6.5

2004

7.7

1984

7.7

2006

7.5

1990

7.2

2001

7.6

2001

7.4

1983

7.1

2022

1.0

2004

7.3

1999

8.2

2003

7.1

2003

6.7

1968

8.1

1982

7.9

1930

7.8

1979

6.5