options ps=55 ls=75;

data a;

input year station wbcatch;

*spring gill net catch of white bass before and after suspension of commercial

fishing in 1991;

cards;

1989 1 9

1989 2 17

1989 3 17

1989 4 26

1989 5 2

1989 6 10

1989 7 36

1989 8 12

1989 9 13

1989 10 4

1989 11 3

1989 12 3

1989 13 9

1989 14 12

1989 15 6

1990 1 4

1990 2 13

1990 3 0

1990 4 0

1990 5 1

1990 6 0

1990 7 0

1990 8 2

1990 9 0

1990 10 0

1990 11 3

1990 12 0

1990 13 2

1990 14 0

1990 15 0

1991 1 2

1991 2 0

1991 3 10

1991 4 0

1991 5 3

1991 6 0

1991 7 1

1991 8 1

1991 9 1

1991 10 1

1991 11 4

1991 12 1

1991 13 7

1991 14 5

1991 15 1

1992 1 11

1992 2 11

1992 3 13

1992 4 7

1992 5 4

1992 6 5

1992 7 2

1992 8 7

1992 9 8

1992 10 22

1992 11 21

1992 12 26

1992 13 10

1992 14 3

1992 15 0

1993 1 30

1993 2 6

1993 3 4

1993 4 4

1993 5 9

1993 6 0

1993 7 32

1993 8 12

1993 9 3

1993 10 6

1993 11 10

1993 12 9

1993 13 3

1993 14 6

1993 15 9

1994 1 6

1994 2 5

1994 3 1

1994 4 10

1994 5 4

1994 6 26

1994 7 8

1994 8 7

1994 9 32

1994 10 32

1994 11 28

1994 12 22

1994 13 10

1994 14 17

1994 15 5

1997 1 10

1997 2 0

1997 3 19

1997 4 2

1997 5 10

1997 6 3

1997 7 0

1997 8 1

1997 9 3

1997 10 3

1997 11 9

1997 12 0

1997 13 16

1997 14 6

1997 15 0

;