datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,06 0:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,06 1:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,06 2:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,06 3:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,06 4:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,06 5:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,06 6:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,06 7:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,06 8:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,06 9:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0610:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0611:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0612:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0613:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0614:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0615:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0616:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0617:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0618:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0619:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0620:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0621:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0622:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0623:30:00,0 ,       .,       .,       .,       .