datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,04 0:30:00,24 ,       0,50.46828,6.589098,11.06503
sgpcmbeC1.c1,2001,04 1:30:00,23 ,       0, 61.6671,7.576352,  13.938
sgpcmbeC1.c1,2001,04 2:30:00,20 ,       0,27.27857,6.059334,7.614644
sgpcmbeC1.c1,2001,04 3:30:00,20 ,       0,40.26497,6.864121,10.08834
sgpcmbeC1.c1,2001,04 4:30:00,21 ,       0,39.90525,7.731483,11.10119
sgpcmbeC1.c1,2001,04 5:30:00,20 ,       0,39.42775,6.613196,9.152984
sgpcmbeC1.c1,2001,04 6:30:00,20 ,       0,51.49188,11.37559,15.56308
sgpcmbeC1.c1,2001,04 7:30:00,20 ,       0,351.5155,28.13429,77.92589
sgpcmbeC1.c1,2001,04 8:30:00,25 ,       0,396.5817,49.19152,105.8208
sgpcmbeC1.c1,2001,04 9:30:00,26 ,       0,644.5858, 67.8557,149.4616
sgpcmbeC1.c1,2001,0410:30:00,26 ,       0,596.3983,54.06452,132.0907
sgpcmbeC1.c1,2001,0411:30:00,26 ,       0,395.8197,50.05011,105.6075
sgpcmbeC1.c1,2001,0412:30:00,26 ,       0,492.4183,49.78347,113.4628
sgpcmbeC1.c1,2001,0413:30:00,26 ,       0, 141.754,19.07396,31.00554
sgpcmbeC1.c1,2001,0414:30:00,27 ,       0,225.3161,20.90632,45.52895
sgpcmbeC1.c1,2001,0415:30:00,26 ,       0,40.68998,9.730916,12.34922
sgpcmbeC1.c1,2001,0416:30:00,26 ,       0, 50.1832,12.12553,14.96888
sgpcmbeC1.c1,2001,0417:30:00,26 ,0.006641,56.56445, 10.8418,14.45219
sgpcmbeC1.c1,2001,0418:30:00,26 ,       0,93.85766,11.69773,19.89985
sgpcmbeC1.c1,2001,0419:30:00,26 ,0.019374,159.9708, 16.8399,32.55296
sgpcmbeC1.c1,2001,0420:30:00,26 ,       0,142.0139,20.32223,37.92174
sgpcmbeC1.c1,2001,0421:30:00,26 ,       0,261.5623,22.19738,52.22827
sgpcmbeC1.c1,2001,0422:30:00,26 ,       0,56.56134,10.63404,16.59608
sgpcmbeC1.c1,2001,0423:30:00,26 ,       0,140.2764,13.78488,32.42671