datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,12 0:30:00,29 ,       0,479.0023, 41.1495,105.1283
sgpcmbeC1.c1,2006,12 1:30:00,29 ,       0,336.4645,30.22436,70.55613
sgpcmbeC1.c1,2006,12 2:30:00,28 ,       0,547.3211,37.61555, 105.709
sgpcmbeC1.c1,2006,12 3:30:00,28 ,       0,675.3044,41.99213, 129.282
sgpcmbeC1.c1,2006,12 4:30:00,28 ,       0,1097.271,61.94876, 208.748
sgpcmbeC1.c1,2006,12 5:30:00,29 ,       0,790.1062,70.46265,167.7691
sgpcmbeC1.c1,2006,12 6:30:00,29 ,       0,1846.133,112.5565,361.7785
sgpcmbeC1.c1,2006,12 7:30:00,28 ,       0,1659.127,106.9022,327.2449
sgpcmbeC1.c1,2006,12 8:30:00,28 ,       0,1581.139,120.8239,326.4683
sgpcmbeC1.c1,2006,12 9:30:00,28 ,       0, 1646.29,146.3752,356.9195
sgpcmbeC1.c1,2006,1210:30:00,29 ,       0,921.8904,94.97088,225.3062
sgpcmbeC1.c1,2006,1211:30:00,30 ,       0,491.8114,54.30631,107.4728
sgpcmbeC1.c1,2006,1212:30:00,30 ,       0,292.8998,51.09673,85.96071
sgpcmbeC1.c1,2006,1213:30:00,31 ,       0,238.1678,38.65229,64.67685
sgpcmbeC1.c1,2006,1214:30:00,31 ,       0,289.9226,29.72026,60.41626
sgpcmbeC1.c1,2006,1215:30:00,31 ,       0, 314.546,32.74619,67.25022
sgpcmbeC1.c1,2006,1216:30:00,31 ,       0,269.1896,35.28696,65.67675
sgpcmbeC1.c1,2006,1217:30:00,31 ,       0,394.7845,45.60313,91.88882
sgpcmbeC1.c1,2006,1218:30:00,31 ,       0,514.7074,50.93554,119.0119
sgpcmbeC1.c1,2006,1219:30:00,31 ,       0,1073.079,76.12066, 211.286
sgpcmbeC1.c1,2006,1220:30:00,30 ,       0,1098.463,72.74979, 216.831
sgpcmbeC1.c1,2006,1221:30:00,29 ,       0,451.6877,31.84066,91.49035
sgpcmbeC1.c1,2006,1222:30:00,29 ,       0,1530.397,66.56793,283.5491
sgpcmbeC1.c1,2006,1223:30:00,30 ,       0,1529.329,94.50477,324.2545