datastream, year, month, tod,n, min, max, mean, std
twpcmbeC3.c1,2003,05 0:00:00,31 ,       0,0.000426,0.000014,0.000076
twpcmbeC3.c1,2003,05 1:00:00,31 ,       0,       0,       0,       0
twpcmbeC3.c1,2003,05 2:00:00,30 ,       0,  0.0005,0.000039,0.000129
twpcmbeC3.c1,2003,05 3:00:00,31 ,       0,0.000167,5.376E-6, 0.00003
twpcmbeC3.c1,2003,05 4:00:00,31 ,       0,0.000333,0.000011, 0.00006
twpcmbeC3.c1,2003,05 5:00:00,31 ,       0,0.000333,0.000011, 0.00006
twpcmbeC3.c1,2003,05 6:00:00,31 ,       0,0.000167,5.376E-6, 0.00003
twpcmbeC3.c1,2003,05 7:00:00,31 ,5.786166,21.79525,11.07633,3.280207
twpcmbeC3.c1,2003,05 8:00:00,31 ,42.85999, 106.004, 65.2878,20.28659
twpcmbeC3.c1,2003,05 9:00:00,31 ,58.14368,211.8876,  99.582,38.16668
twpcmbeC3.c1,2003,0510:00:00,31 ,62.70216,285.9264,119.7329,60.27558
twpcmbeC3.c1,2003,0511:00:00,31 ,67.27617,369.0432,141.4204,76.59069
twpcmbeC3.c1,2003,0512:00:00,31 ,70.14841,402.7204, 154.889,84.86849
twpcmbeC3.c1,2003,0513:00:00,31 ,69.03566,456.7789,170.3101,88.40506
twpcmbeC3.c1,2003,0514:00:00,31 ,69.77349,478.3768, 172.266,98.68462
twpcmbeC3.c1,2003,0515:00:00,31 ,69.21684,389.4444,147.9293,69.60258
twpcmbeC3.c1,2003,0516:00:00,31 ,70.72134,245.3282,126.8436,48.46744
twpcmbeC3.c1,2003,0517:00:00,31 ,53.93883,153.2881, 89.4764,24.48542
twpcmbeC3.c1,2003,0518:00:00,31 ,13.39441,71.62278,34.52582,10.64963
twpcmbeC3.c1,2003,0519:00:00,31 ,   0.042, 1.23196,0.420096,0.287198
twpcmbeC3.c1,2003,0520:00:00,31 ,       0,       0,       0,       0
twpcmbeC3.c1,2003,0521:00:00,31 ,       0,       0,       0,       0
twpcmbeC3.c1,2003,0522:00:00,31 ,       0,       0,       0,       0
twpcmbeC3.c1,2003,0523:00:00,31 ,       0,       0,       0,       0