datastream, year, month, tod,n, min, max, mean, std
twpcmbeC3.c1,2007,03 0:00:00,31 ,       0,0.001044,0.000034,0.000187
twpcmbeC3.c1,2007,03 1:00:00,31 ,       0, 0.00066,0.000021,0.000118
twpcmbeC3.c1,2007,03 2:00:00,31 ,       0,0.005551,0.000179,0.000997
twpcmbeC3.c1,2007,03 3:00:00,31 ,       0,0.002405,0.000078,0.000432
twpcmbeC3.c1,2007,03 4:00:00,31 ,       0,       0,       0,       0
twpcmbeC3.c1,2007,03 5:00:00,31 ,       0,       0,       0,       0
twpcmbeC3.c1,2007,03 6:00:00,31 ,       0,       0,       0,       0
twpcmbeC3.c1,2007,03 7:00:00,31 ,1.341339,29.63886,15.21766,7.266123
twpcmbeC3.c1,2007,03 8:00:00,31 ,9.209671, 162.231,92.74904,41.18069
twpcmbeC3.c1,2007,03 9:00:00,31 ,14.39973,316.0334,175.2037,79.79734
twpcmbeC3.c1,2007,0310:00:00,31 ,24.92272,451.1195,237.2917,119.5876
twpcmbeC3.c1,2007,0311:00:00,31 ,71.38004,543.7329,  309.05, 132.423
twpcmbeC3.c1,2007,0312:00:00,31 ,36.33775,615.3155,346.0519,127.9186
twpcmbeC3.c1,2007,0313:00:00,31 ,25.13333,637.0267,308.3538,136.9365
twpcmbeC3.c1,2007,0314:00:00,31 ,8.266551,498.7066,270.9574,130.4039
twpcmbeC3.c1,2007,0315:00:00,31 ,4.161796,504.9881,253.0888,132.4533
twpcmbeC3.c1,2007,0316:00:00,31 ,2.720623,395.5771,196.1746,108.2789
twpcmbeC3.c1,2007,0317:00:00,31 ,1.717596,267.3465,139.2263,73.78097
twpcmbeC3.c1,2007,0318:00:00,31 , 1.54491,125.0412,63.88787,33.21198
twpcmbeC3.c1,2007,0319:00:00,31 ,0.209941,15.11665,6.514608,  3.6206
twpcmbeC3.c1,2007,0320:00:00,31 ,       0,       0,       0,       0
twpcmbeC3.c1,2007,0321:00:00,31 ,       0,       0,       0,       0
twpcmbeC3.c1,2007,0322:00:00,31 ,       0,       0,       0,       0
twpcmbeC3.c1,2007,0323:00:00,31 ,       0,       0,       0,       0