datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,09 0:30:00,20 ,       0,67.71679, 12.6948,20.66338
sgpcmbeC1.c1,2001,09 1:30:00,19 ,       0,107.9519,13.49686,25.90593
sgpcmbeC1.c1,2001,09 2:30:00,18 ,       0,70.55519,11.17316,16.98884
sgpcmbeC1.c1,2001,09 3:30:00,18 ,       0,77.41167,10.37845, 19.5046
sgpcmbeC1.c1,2001,09 4:30:00,18 ,       0,71.16875,9.524303,17.63649
sgpcmbeC1.c1,2001,09 5:30:00,18 ,       0, 72.6155,15.08495, 24.5959
sgpcmbeC1.c1,2001,09 6:30:00,16 ,       0,272.0293,28.96076,69.62952
sgpcmbeC1.c1,2001,09 7:30:00,16 ,       0,95.60086,11.96039,25.07358
sgpcmbeC1.c1,2001,09 8:30:00,24 ,       0,209.9512, 26.8563,59.69007
sgpcmbeC1.c1,2001,09 9:30:00,24 ,       0,155.2903,22.75177, 39.8898
sgpcmbeC1.c1,2001,0910:30:00,25 ,       0,132.6712,22.00756,36.73738
sgpcmbeC1.c1,2001,0911:30:00,25 ,       0,221.6048,23.50839,50.55375
sgpcmbeC1.c1,2001,0912:30:00,24 ,       0,172.5974,18.48555,37.11767
sgpcmbeC1.c1,2001,0913:30:00,22 ,       0,98.11215,10.87822,21.18448
sgpcmbeC1.c1,2001,0914:30:00,23 ,       0,50.90163,10.52578,15.01253
sgpcmbeC1.c1,2001,0915:30:00,23 ,       0,93.56339,13.48017,22.33013
sgpcmbeC1.c1,2001,0916:30:00,23 ,       0,66.40643,9.715356,13.94052
sgpcmbeC1.c1,2001,0917:30:00,22 ,       0,31.68927, 7.39353,7.855973
sgpcmbeC1.c1,2001,0918:30:00,22 ,       0, 50.6843,9.115872,11.18257
sgpcmbeC1.c1,2001,0919:30:00,22 ,       0,30.24708,5.824913,7.165849
sgpcmbeC1.c1,2001,0920:30:00,22 ,       0,71.75303,7.823038,14.84318
sgpcmbeC1.c1,2001,0921:30:00,22 ,       0,268.2009,17.24304,56.29264
sgpcmbeC1.c1,2001,0922:30:00,20 ,       0,211.0478,17.23362, 47.1868
sgpcmbeC1.c1,2001,0923:30:00,20 ,       0,91.17569,12.61454,23.07238