datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,03 0:30:00,29 ,227.7759,375.4837,295.2671,43.08254
sgpcmbeC1.c1,1999,03 1:30:00,29 ,223.1403,   374.8, 291.599,41.86199
sgpcmbeC1.c1,1999,03 2:30:00,29 ,219.6705,375.2609,290.7886,43.36909
sgpcmbeC1.c1,1999,03 3:30:00,30 , 217.731,375.3252,290.4591,45.61172
sgpcmbeC1.c1,1999,03 4:30:00,29 , 217.409,375.2347,293.6499,45.31883
sgpcmbeC1.c1,1999,03 5:30:00,29 ,217.0085,373.1536,291.6143,45.99675
sgpcmbeC1.c1,1999,03 6:30:00,29 ,216.5457,372.0041,290.5972,47.72594
sgpcmbeC1.c1,1999,03 7:30:00,29 ,216.7567,370.1163,289.2166,45.20838
sgpcmbeC1.c1,1999,03 8:30:00,28 ,219.8338,368.5407,292.4919,40.88987
sgpcmbeC1.c1,1999,03 9:30:00,29 ,225.1317, 358.891,295.0003,35.77257
sgpcmbeC1.c1,1999,0310:30:00,29 , 230.014,369.7133,305.2484,36.60394
sgpcmbeC1.c1,1999,0311:30:00,29 ,234.7655,378.0219, 309.299,36.45255
sgpcmbeC1.c1,1999,0312:30:00,30 ,239.0724,376.0963,311.4568,36.68118
sgpcmbeC1.c1,1999,0313:30:00,30 ,241.1735,388.1408, 312.586,35.75552
sgpcmbeC1.c1,1999,0314:30:00,30 ,244.2262,389.5268,311.4681,37.17628
sgpcmbeC1.c1,1999,0315:30:00,30 ,247.3659,393.4396,312.7605,36.43677
sgpcmbeC1.c1,1999,0316:30:00,30 ,249.5574,394.5885,313.0031,35.63046
sgpcmbeC1.c1,1999,0317:30:00,30 ,250.7012,395.9035,313.0099,37.68302
sgpcmbeC1.c1,1999,0318:30:00,30 ,248.8641,370.8337,309.4317,35.75995
sgpcmbeC1.c1,1999,0319:30:00,29 ,247.5312,382.4767,302.3001,35.98159
sgpcmbeC1.c1,1999,0320:30:00,29 ,242.4937,377.9013,297.6971, 38.2655
sgpcmbeC1.c1,1999,0321:30:00,29 ,239.4327,366.6131,292.2478, 37.5412
sgpcmbeC1.c1,1999,0322:30:00,29 , 235.178,375.0709,291.8447,39.63986
sgpcmbeC1.c1,1999,0323:30:00,29 ,231.7077,374.8446,  291.74,41.22171