datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,04 0:30:00,19 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,04 1:30:00,19 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,04 2:30:00,19 ,       0, 0.14861,0.007822,0.034094
sgpcmbeC1.c1,1999,04 3:30:00,19 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,04 4:30:00,19 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,04 5:30:00,19 ,       0, 0.20147,0.025538, 0.05267
sgpcmbeC1.c1,1999,04 6:30:00,19 ,0.321286,23.88475,11.98922,8.122627
sgpcmbeC1.c1,1999,04 7:30:00,19 ,4.375154,71.18412,41.27464,22.74397
sgpcmbeC1.c1,1999,04 8:30:00,18 ,5.074615,113.3256,77.34557,37.05262
sgpcmbeC1.c1,1999,04 9:30:00,18 ,5.346928, 145.957,112.7478,43.56952
sgpcmbeC1.c1,1999,0410:30:00,18 ,10.38745,169.7453, 128.301,53.91609
sgpcmbeC1.c1,1999,0411:30:00,18 ,4.258523,184.9663,146.8702,53.07104
sgpcmbeC1.c1,1999,0412:30:00,18 ,33.36329, 190.402,149.0201,49.81327
sgpcmbeC1.c1,1999,0413:30:00,18 ,12.01983,186.9497,139.3602,59.70841
sgpcmbeC1.c1,1999,0414:30:00,18 ,4.795427, 174.159,124.9761,53.17531
sgpcmbeC1.c1,1999,0415:30:00,18 ,2.738588,150.5718,106.3646,40.22281
sgpcmbeC1.c1,1999,0416:30:00,18 ,2.226089,114.7438,81.40127, 32.8797
sgpcmbeC1.c1,1999,0417:30:00,18 ,2.397429,71.99341,44.26314,23.13381
sgpcmbeC1.c1,1999,0418:30:00,18 ,       0,22.98996,12.60878,7.481461
sgpcmbeC1.c1,1999,0419:30:00,18 ,       0,0.049965,0.004366,0.013224
sgpcmbeC1.c1,1999,0420:30:00,18 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0421:30:00,18 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0422:30:00,18 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0423:30:00,18 ,       0,       0,       0,       0