datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,02 0:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,02 1:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,02 2:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,02 3:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,02 4:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,02 5:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,02 6:30:00,26 ,       0,0.006233, 0.00024,0.001222
sgpcmbeC1.c1,1999,02 7:30:00,26 ,       0,18.14425,5.806891,5.303335
sgpcmbeC1.c1,1999,02 8:30:00,26 ,2.359575,61.62524,31.41635, 19.3399
sgpcmbeC1.c1,1999,02 9:30:00,26 ,5.506863,104.3448,60.63719, 33.6753
sgpcmbeC1.c1,1999,0210:30:00,26 ,18.13527, 131.236,87.22519, 39.0589
sgpcmbeC1.c1,1999,0211:30:00,26 ,18.89179,150.1543,107.1451,39.45504
sgpcmbeC1.c1,1999,0212:30:00,26 ,18.77391,157.0709,117.8043,34.51071
sgpcmbeC1.c1,1999,0213:30:00,26 ,26.10174,153.9373,114.8666,35.97937
sgpcmbeC1.c1,1999,0214:30:00,26 , 8.15705,139.3698,102.1534,36.40665
sgpcmbeC1.c1,1999,0215:30:00,26 ,2.985406,114.3098,83.16772,29.36774
sgpcmbeC1.c1,1999,0216:30:00,26 ,2.180076,77.37865,51.93458,20.37497
sgpcmbeC1.c1,1999,0217:30:00,26 ,0.768158,34.42008,18.31821,9.576825
sgpcmbeC1.c1,1999,0218:30:00,26 ,       0,1.902464,0.471578,0.658396
sgpcmbeC1.c1,1999,0219:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0220:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0221:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0222:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0223:30:00,26 ,       0,       0,       0,       0