datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,12 0:30:00,31 ,       0, 0.21229,0.023886,0.052444
sgpcmbeC1.c1,1999,12 1:30:00,31 ,       0,0.163373,0.017396,0.044694
sgpcmbeC1.c1,1999,12 2:30:00,31 ,       0,0.167298,0.015609, 0.03936
sgpcmbeC1.c1,1999,12 3:30:00,31 ,       0,0.583084,0.041097,0.117543
sgpcmbeC1.c1,1999,12 4:30:00,31 ,       0,0.421573,0.017851,0.077648
sgpcmbeC1.c1,1999,12 5:30:00,31 ,       0,0.127142,0.004101,0.022835
sgpcmbeC1.c1,1999,12 6:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,12 7:30:00,31 ,       0,6.536993,2.316139, 1.64495
sgpcmbeC1.c1,1999,12 8:30:00,31 ,0.070077,14.03962,8.767713,3.945917
sgpcmbeC1.c1,1999,12 9:30:00,31 ,1.122892,22.48922,9.352604, 5.03389
sgpcmbeC1.c1,1999,1210:30:00,31 ,2.636758,28.75686,9.453895,6.576663
sgpcmbeC1.c1,1999,1211:30:00,31 , 1.06407,33.55776,8.731587, 9.13767
sgpcmbeC1.c1,1999,1212:30:00,31 ,0.276555,36.65376, 7.78953,  10.934
sgpcmbeC1.c1,1999,1213:30:00,31 ,0.256879,38.44878,8.782015,9.244164
sgpcmbeC1.c1,1999,1214:30:00,31 ,0.865784,25.30097,9.791552,6.869215
sgpcmbeC1.c1,1999,1215:30:00,31 ,0.825411,22.11748,8.493655, 3.73892
sgpcmbeC1.c1,1999,1216:30:00,31 ,0.280292,16.38344,9.250889,4.588204
sgpcmbeC1.c1,1999,1217:30:00,31 ,       0, 2.64104,1.032064,0.926448
sgpcmbeC1.c1,1999,1218:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1219:30:00,31 ,       0,0.023887,0.000771, 0.00429
sgpcmbeC1.c1,1999,1220:30:00,31 ,       0,0.130328,0.006544,0.025171
sgpcmbeC1.c1,1999,1221:30:00,31 ,       0,0.140119,0.008722,0.032517
sgpcmbeC1.c1,1999,1222:30:00,31 ,       0,0.178145, 0.01342,0.038747
sgpcmbeC1.c1,1999,1223:30:00,31 ,       0,0.124863,0.015173,0.031848