datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,01 0:30:00,8 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,01 1:30:00,9 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,01 2:30:00,8 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,01 3:30:00,11 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,01 4:30:00,14 ,       0,0.054538,0.003896,0.014576
sgpcmbeC1.c1,2001,01 5:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,01 6:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,01 7:30:00,31 ,       0,13.71924,6.670205,3.243966
sgpcmbeC1.c1,2001,01 8:30:00,31 ,2.220725,65.83596,38.24236,18.43799
sgpcmbeC1.c1,2001,01 9:30:00,31 ,6.543413,65.78797,43.03101, 16.1209
sgpcmbeC1.c1,2001,0110:30:00,31 ,10.70489,86.68333,40.91842,15.47577
sgpcmbeC1.c1,2001,0111:30:00,31 ,12.63333,116.1617,37.99382,28.29317
sgpcmbeC1.c1,2001,0112:30:00,31 , 3.04564,147.4359,35.93549,39.49415
sgpcmbeC1.c1,2001,0113:30:00,31 ,11.05507,154.2608,37.76702,29.84248
sgpcmbeC1.c1,2001,0114:30:00,31 ,11.32407,148.3493,55.73549,37.01672
sgpcmbeC1.c1,2001,0115:30:00,31 ,9.583544,129.3583,49.99638,24.45307
sgpcmbeC1.c1,2001,0116:30:00,31 ,  5.1066,82.74323,41.79031,19.36325
sgpcmbeC1.c1,2001,0117:30:00,31 ,1.195421,40.67437,18.33061,10.84985
sgpcmbeC1.c1,2001,0118:30:00,30 ,       0, 0.56064,0.018688,0.102358
sgpcmbeC1.c1,2001,0119:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0120:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0121:30:00,15 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0122:30:00,15 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0123:30:00,10 ,       0,       0,       0,       0