datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,01 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 1:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 2:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 6:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 7:30:00,31 ,       0,2.523968,0.636318, 0.73893
sgpcmbeC1.c1,1999,01 8:30:00,30 ,       0,32.58257,14.48185,10.51665
sgpcmbeC1.c1,1999,01 9:30:00,30 ,1.792181,69.33549,35.64342, 24.5754
sgpcmbeC1.c1,1999,0110:30:00,30 ,4.335533,100.7412,55.82859,34.67903
sgpcmbeC1.c1,1999,0111:30:00,29 , 3.75472,118.6045,70.20502, 37.1986
sgpcmbeC1.c1,1999,0112:30:00,29 ,6.143456,124.9177,82.10031,42.64731
sgpcmbeC1.c1,1999,0113:30:00,30 ,4.839428, 120.805,77.04174, 42.4517
sgpcmbeC1.c1,1999,0114:30:00,29 ,6.444047,108.1004,69.55152,34.99925
sgpcmbeC1.c1,1999,0115:30:00,28 ,2.902662, 82.2382,53.37488, 26.9105
sgpcmbeC1.c1,1999,0116:30:00,28 ,0.756989, 43.7392,25.55433,13.26126
sgpcmbeC1.c1,1999,0117:30:00,31 ,       0,11.29633,3.163006,3.008997
sgpcmbeC1.c1,1999,0118:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0119:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0120:30:00,31 ,       0,0.000844,0.000027,0.000152
sgpcmbeC1.c1,1999,0121:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0122:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0123:30:00,28 ,       0,       0,       0,       0