datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,09 0:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,09 1:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,09 2:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,09 3:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,09 4:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,09 5:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,09 6:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,09 7:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,09 8:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,09 9:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,0910:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,0911:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,0912:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,0913:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,0914:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,0915:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,0916:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,0917:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,0918:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,0919:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,0920:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,0921:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,0922:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2007,0923:30:00,0 ,       .,       .,       .,       .