datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,07 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,07 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,07 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,07 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,07 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,07 5:30:00,31 ,       0,10.16914,3.626872,2.433886
sgpcmbeC1.c1,2003,07 6:30:00,31 , 3.57832, 47.5334,34.58003,12.63393
sgpcmbeC1.c1,2003,07 7:30:00,31 ,13.33116,92.76308,77.46236,18.36899
sgpcmbeC1.c1,2003,07 8:30:00,31 ,35.21407,138.5483, 115.116,26.60286
sgpcmbeC1.c1,2003,07 9:30:00,31 ,62.77584,165.5373,144.7498,23.74644
sgpcmbeC1.c1,2003,0710:30:00,31 ,92.46544,194.5816,168.8025,23.33766
sgpcmbeC1.c1,2003,0711:30:00,31 ,84.16116,202.2672,175.8247,27.98685
sgpcmbeC1.c1,2003,0712:30:00,31 ,95.02088,210.4837,179.6008,24.65385
sgpcmbeC1.c1,2003,0713:30:00,31 ,84.90289,204.2543,169.9794,26.96425
sgpcmbeC1.c1,2003,0714:30:00,31 ,107.5902,193.3233,161.3056,18.93664
sgpcmbeC1.c1,2003,0715:30:00,31 ,73.28945,165.1502,142.1491,21.45589
sgpcmbeC1.c1,2003,0716:30:00,31 ,41.45967,136.0636,116.8995,21.44963
sgpcmbeC1.c1,2003,0717:30:00,31 ,37.50539,  97.266,79.90121,17.26687
sgpcmbeC1.c1,2003,0718:30:00,31 ,9.164759,60.31182,42.11132, 9.71812
sgpcmbeC1.c1,2003,0719:30:00,31 , 1.13183,14.27295,6.555357,3.089999
sgpcmbeC1.c1,2003,0720:30:00,31 ,       0,0.104023,0.003356,0.018683
sgpcmbeC1.c1,2003,0721:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0722:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0723:30:00,31 ,       0,       0,       0,       0