□ I I II III III III II I I □

5.9

/

1990

6.7

/

2020

6.2

/

2009

5.3

/

1991

7.225

/

1990

6.1

/

1985

7.94

/

1982

7.1

/

2010

6.2

/

1999

5.716

/

1989

6

/

1970

7.595

/

1933

7.4

/

1974

7.122

/

2000

5.9

/

2011

6.8

/

1997

7.1

/

1993

7.2

/

1998

6.924

/

1984

6.4

/

1980