datastream, year, month, tod,n, min, max, mean, std twpcmbeC1.c1,2005,04 0:30:00,29 ,439.0406,458.5064,448.2281,5.105084 twpcmbeC1.c1,2005,04 1:30:00,30 ,439.5025,460.1281,447.9073,4.937536 twpcmbeC1.c1,2005,04 2:30:00,30 ,439.0246,459.5774,447.4279,5.083721 twpcmbeC1.c1,2005,04 3:30:00,30 ,437.1628,459.2062,447.0731,5.338061 twpcmbeC1.c1,2005,04 4:30:00,30 ,436.1781, 459.665, 446.885,5.349593 twpcmbeC1.c1,2005,04 5:30:00,30 ,436.9565,458.2967,446.5152,5.100204 twpcmbeC1.c1,2005,04 6:30:00,30 ,441.8822,458.3822, 449.062,3.991407 twpcmbeC1.c1,2005,04 7:30:00,30 ,442.4782,479.0937,463.5355,9.201114 twpcmbeC1.c1,2005,04 8:30:00,30 ,441.1388,508.7676,480.1684,16.96967 twpcmbeC1.c1,2005,04 9:30:00,30 ,442.3359,533.6335,495.0477,22.55872 twpcmbeC1.c1,2005,0410:30:00,30 ,440.8854,551.5626,502.7965,26.79368 twpcmbeC1.c1,2005,0411:30:00,30 ,451.3587,561.4473,506.3854,29.06056 twpcmbeC1.c1,2005,0412:30:00,30 ,440.9073,561.5198,506.4443,32.16088 twpcmbeC1.c1,2005,0413:30:00,30 ,442.6591,562.3372,502.8467,32.49433 twpcmbeC1.c1,2005,0414:30:00,30 ,443.4492,552.0765, 498.545,28.07229 twpcmbeC1.c1,2005,0415:30:00,30 ,444.7519,532.3464,486.4098,23.99252 twpcmbeC1.c1,2005,0416:30:00,30 ,447.2378,508.4734,476.1774,17.04738 twpcmbeC1.c1,2005,0417:30:00,30 ,445.8189,477.4848,463.6567,8.805253 twpcmbeC1.c1,2005,0418:30:00,30 ,442.9061,462.4156,454.9532,5.122377 twpcmbeC1.c1,2005,0419:30:00,30 ,445.2985,460.8639,452.8194,4.642887 twpcmbeC1.c1,2005,0420:30:00,30 ,442.1392,458.7625,451.4097,4.652374 twpcmbeC1.c1,2005,0421:30:00,30 ,439.5244,459.0275, 450.368, 4.9519 twpcmbeC1.c1,2005,0422:30:00,30 , 438.709,459.7808,450.1752,4.622889 twpcmbeC1.c1,2005,0423:30:00,30 ,437.9092,458.5635,449.0935,4.698396