datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,01 0:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,01 1:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,01 2:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,01 3:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,01 4:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,01 5:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,01 6:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,01 7:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,01 8:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,01 9:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0110:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0111:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0112:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0113:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0114:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0115:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0116:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0117:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0118:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0119:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0120:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0121:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0122:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1997,0123:30:00,0 ,       .,       .,       .,       .