datastream, year, month, tod,n, min, max, mean, std twpcmbeC1.c1,2002,05 0:30:00,31 ,434.0143, 458.527,448.3469,6.828545 twpcmbeC1.c1,2002,05 1:30:00,31 ,433.8679,457.0875,447.7857,6.217401 twpcmbeC1.c1,2002,05 2:30:00,31 ,433.9945, 457.268, 447.036,6.159186 twpcmbeC1.c1,2002,05 3:30:00,31 ,434.4295,456.9781,446.0636,5.938818 twpcmbeC1.c1,2002,05 4:30:00,31 , 436.153,457.0373,445.7256,6.085797 twpcmbeC1.c1,2002,05 5:30:00,31 ,436.8652,458.0087,445.5923,6.292354 twpcmbeC1.c1,2002,05 6:30:00,31 ,439.8332, 459.344,449.7101,5.835873 twpcmbeC1.c1,2002,05 7:30:00,31 ,448.9012, 485.982,467.7378,8.039798 twpcmbeC1.c1,2002,05 8:30:00,31 ,448.1983,508.2599,487.3809,14.34645 twpcmbeC1.c1,2002,05 9:30:00,31 ,449.3071,529.2821,501.6848,20.52107 twpcmbeC1.c1,2002,0510:30:00,31 ,454.7202,540.2337,514.1882,20.92718 twpcmbeC1.c1,2002,0511:30:00,31 ,452.9984,544.4478,518.1929,23.24301 twpcmbeC1.c1,2002,0512:30:00,31 ,444.3319,559.9493,518.3962,27.63248 twpcmbeC1.c1,2002,0513:30:00,31 ,445.1473,554.6514,517.3591,29.57546 twpcmbeC1.c1,2002,0514:30:00,31 , 448.095,541.4539,510.5179,24.88943 twpcmbeC1.c1,2002,0515:30:00,31 ,450.2412,528.7921,496.5409,21.32383 twpcmbeC1.c1,2002,0516:30:00,31 , 448.573,503.5648,484.1221,14.43866 twpcmbeC1.c1,2002,0517:30:00,31 ,447.5723,481.6307, 467.71, 7.95898 twpcmbeC1.c1,2002,0518:30:00,31 ,444.7065,463.0894,455.6642,4.547203 twpcmbeC1.c1,2002,0519:30:00,31 ,443.0619,463.9105,453.4479,5.368252 twpcmbeC1.c1,2002,0520:30:00,31 ,441.3593,461.4293,452.3069,5.876591 twpcmbeC1.c1,2002,0521:30:00,31 ,439.3715,460.8423,451.8554,6.368987 twpcmbeC1.c1,2002,0522:30:00,31 ,437.6251,461.2437, 450.74,6.521441 twpcmbeC1.c1,2002,0523:30:00,31 , 436.791,459.3993,449.6376,6.561934