datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,2006,08 0:30:00,31 ,       0,0.003849,0.000124,0.000691
twpcmbeC1.c1,2006,08 1:30:00,30 ,       0,0.000772,0.000026,0.000141
twpcmbeC1.c1,2006,08 2:30:00,31 ,       0,0.000196,6.315E-6,0.000035
twpcmbeC1.c1,2006,08 3:30:00,31 ,       0,0.007732,0.000249,0.001389
twpcmbeC1.c1,2006,08 4:30:00,31 ,       0,0.001073,0.000046,0.000196
twpcmbeC1.c1,2006,08 5:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,08 6:30:00,31 , 1.13586,27.76907,16.41564,7.216521
twpcmbeC1.c1,2006,08 7:30:00,31 ,10.81404,169.1168,90.28624,34.94452
twpcmbeC1.c1,2006,08 8:30:00,31 ,13.48151,308.9768,174.3315,71.65163
twpcmbeC1.c1,2006,08 9:30:00,31 , 28.5508,450.2436,271.2461,112.7957
twpcmbeC1.c1,2006,0810:30:00,31 ,82.44339,516.2549,312.6562,121.1345
twpcmbeC1.c1,2006,0811:30:00,31 ,53.48836,530.0983,269.8847,134.9174
twpcmbeC1.c1,2006,0812:30:00,31 ,33.22112,569.3317,303.1866,158.0878
twpcmbeC1.c1,2006,0813:30:00,31 ,26.06834,518.6893,301.0664, 138.832
twpcmbeC1.c1,2006,0814:30:00,31 ,16.90946,441.3842,278.8357,104.9353
twpcmbeC1.c1,2006,0815:30:00,31 ,17.88175,353.5556,213.4562,83.55317
twpcmbeC1.c1,2006,0816:30:00,31 ,21.35916,250.8849,149.2181,62.44472
twpcmbeC1.c1,2006,0817:30:00,31 ,7.574991,111.2624,57.35782,23.37243
twpcmbeC1.c1,2006,0818:30:00,31 ,0.030649,5.349421,2.811864,1.322588
twpcmbeC1.c1,2006,0819:30:00,31 ,       0,0.009675,0.000312,0.001738
twpcmbeC1.c1,2006,0820:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0821:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0822:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0823:30:00,31 ,       0,       0,       0,       0