palmer lter data file13 !file = repro01.txt island, colony number, nest site number, egg 1 lay date, egg 2 lay date, egg 1 loss date, egg 2 loss date, chick 1 hatch date, chick 2 hatch date, chick 1 loss date, chick 2 loss date, chick 1 creche date, chick 2 creche date, "HUM",2.0," 1",1,45,50,62,62,0,0,0,0,0,0 "HUM",2.0," 1",2,0,0,0,0,0,0,0,0,0,0 "HUM",2.0," 1",3,45,50,0,0,81,82,85,85,0,0 "HUM",2.0," 1",4,50,50,0,0,84,87,0,96,107,0 "HUM",2.0," 1",5,50,50,0,0,82,83,0,96,113,0 "HUM",2.0," 2",1,0,0,0,0,0,0,0,0,0,0 "HUM",2.0," 2",2,50,0,0,0,82,0,89,0,0,0 "HUM",2.0," 2",3,0,0,0,0,0,0,0,0,0,0 "HUM",2.0," 2",4,0,0,0,0,0,0,0,0,0,0 "HUM",2.0," 2",5,45,45,73,73,0,0,0,0,0,0 "HUM",2.0," 3",1,0,0,0,0,0,0,0,0,0,0 "HUM",2.0," 3",2,50,50,67,67,0,0,0,0,0,0 "HUM",2.0," 3",3,50,50,0,0,83,84,94,94,0,0 "HUM",2.0," 3",4,50,50,0,0,82,83,89,89,0,0 "HUM",2.0," 3",5,50,50,62,62,0,0,0,0,0,0 "HUM",2.0," 4",1,50,52,0,0,83,83,91,91,0,0 "HUM",2.0," 4",2,50,51,0,999,86,0,87,0,0,0 "HUM",2.0," 4",3,45,50,0,0,80,81,97,96,0,0 "HUM",2.0," 4",4,50,0,52,0,0,0,0,0,0,0 "HUM",2.0," 4",5,50,50,0,999,83,0,96,0,0,0 "HUM",2.0," 5",1,45,50,0,83,82,0,89,0,0,0 "HUM",2.0," 5",2,45,50,999,999,0,0,0,0,0,0 "HUM",2.0," 5",3,45,50,0,0,81,83,0,96,113,0 "HUM",2.0," 5",4,45,50,0,0,81,83,0,0,117,117 "HUM",2.0," 5",5,52,57,0,0,88,89,0,0,113,113 "HUM",2.0," 6",1,50,50,0,999,83,0,0,0,0,0 "HUM",2.0," 6",2,45,50,0,0,82,84,0,0,113,113 "HUM",2.0," 6",3,45,50,0,0,79,80,0,0,111,111 "HUM",2.0," 6",4,45,50,0,0,82,82,0,0,111,111 "HUM",2.0," 6",5,50,0,0,0,87,0,0,0,113,0 "HUM",2.0," 7",1,0,0,0,0,0,0,0,0,0,0 "HUM",2.0," 7",2,51,0,0,0,89,0,0,0,109,0 "HUM",2.0," 7",3,45,51,0,0,83,83,0,0,111,111 "HUM",2.0," 7",4,51,0,0,0,83,0,0,0,111,0 "HUM",2.0," 7",5,45,55,0,999,77,0,0,0,111,0 "HUM",2.0," 8",1,51,55,0,0,87,92,0,109,111,0 "HUM",2.0," 8",2,45,50,0,0,79,80,0,0,111,111 "HUM",2.0," 8",3,50,50,0,999,85,0,0,0,111,0 "HUM",2.0," 8",4,55,0,57,0,0,0,0,0,0,0 "HUM",2.0," 8",5,50,52,0,0,85,85,0,0,111,111 "HUM",2.0," 9",1,50,52,0,88,87,0,0,0,111,0 "HUM",2.0," 9",2,55,57,0,0,90,91,0,0,111,111 "HUM",2.0," 9",3,52,55,0,0,87,88,0,104,111,0 "HUM",2.0," 9",4,50,50,0,999,83,0,0,0,111,0 "HUM",2.0," 9",5,50,52,0,0,84,85,0,0,111,111 "HUM",2.0,"10",1,52,57,59,59,0,0,0,0,0,0 "HUM",2.0,"10",2,50,50,0,0,82,83,0,0,111,111 "HUM",2.0,"10",3,50,52,0,0,85,85,0,100,111,0 "HUM",2.0,"10",4,50,50,0,0,86,88,91,91,0,0 "HUM",2.0,"10",5,50,50,84,81,0,0,0,0,0,0 "HUM",2.0,"11",1,0,0,0,0,0,0,0,0,0,0 "HUM",2.0,"11",2,51,55,0,0,85,87,0,102,111,0 "HUM",2.0,"11",3,0,0,0,0,0,0,0,0,0,0 "HUM",2.0,"11",4,51,52,0,999,85,0,0,0,111,0 "HUM",2.0,"11",5,51,55,0,0,86,87,0,0,111,111 "HUM",2.0,"12",1,0,0,0,0,0,0,0,0,0,0 "HUM",2.0,"12",2,50,0,52,0,0,0,0,0,0,0 "HUM",2.0,"12",3,50,52,0,0,86,86,93,93,0,0 "HUM",2.0,"12",4,45,50,0,0,89,89,98,98,0,0 "HUM",2.0,"12",5,50,55,86,86,0,0,0,0,0,0 "HUM",2.2,"13",1,50,51,0,0,85,86,0,97,113,0 "HUM",2.2,"13",2,52,55,0,999,87,0,0,0,113,0 "HUM",2.2,"13",3,55,57,0,0,88,89,0,0,113,113 "HUM",2.2,"13",4,50,52,0,0,87,88,0,94,113,0 "HUM",2.2,"13",5,50,57,0,55,90,0,0,0,113,0 "HUM",4.0,"14",1,51,0,62,0,0,0,0,0,0,0 "HUM",4.0,"14",2,50,57,0,86,88,0,0,0,113,0 "HUM",4.0,"14",3,52,0,64,0,0,0,0,0,0,0 "HUM",4.0,"14",4,52,52,0,0,85,88,0,0,113,113 "HUM",4.0,"14",5,50,52,64,64,0,0,0,0,0,0 "HUM",3.0,"15",1,52,55,0,0,84,85,0,0,113,113 "HUM",3.0,"15",2,50,50,64,64,0,0,0,0,0,0 "HUM",3.0,"15",3,50,57,82,82,0,0,0,0,0,0 "HUM",3.0,"15",4,50,51,0,0,84,86,0,0,113,113 "HUM",3.0,"15",5,51,55,57,57,0,0,0,0,0,0 "HUM",3.0,"16",1,50,0,57,0,0,0,0,0,0,0 "HUM",3.0,"16",2,50,51,57,57,0,0,0,0,0,0 "HUM",3.0,"16",3,50,52,57,57,0,0,0,0,0,0 "HUM",3.0,"16",4,50,52,0,0,85,85,0,0,113,113 "HUM",3.0,"16",5,55,57,0,0,88,89,0,0,113,113 "HUM",5.0,"17",1,50,51,70,70,0,0,0,0,0,0 "HUM",5.0,"17",2,50,50,999,999,0,0,0,0,0,0 "HUM",5.0,"17",3,50,0,57,0,0,0,0,0,0,0 "HUM",5.0,"17",4,51,0,0,0,86,0,0,0,113,0 "HUM",5.0,"17",5,52,52,66,66,0,0,0,0,0,0