datastream, year, month, tod,n, min, max, mean, std twpcmbeC1.c1,1999,01 0:30:00,30 ,433.6412,462.9051,451.0646,7.439723 twpcmbeC1.c1,1999,01 1:30:00,30 , 430.858,461.6219,450.0023,7.789803 twpcmbeC1.c1,1999,01 2:30:00,30 ,429.1819,460.9272,449.3701,8.020088 twpcmbeC1.c1,1999,01 3:30:00,30 , 428.048,462.3929,448.7787,7.594751 twpcmbeC1.c1,1999,01 4:30:00,30 , 429.866,459.5595,448.2467, 7.37397 twpcmbeC1.c1,1999,01 5:30:00,30 ,430.2726,459.3239, 448.317,7.442846 twpcmbeC1.c1,1999,01 6:30:00,30 ,436.8304,461.9697,452.0978, 6.18101 twpcmbeC1.c1,1999,01 7:30:00,30 ,453.4996,480.4682,470.1509,6.044897 twpcmbeC1.c1,1999,01 8:30:00,30 ,464.8099,500.1771,487.9021,10.04546 twpcmbeC1.c1,1999,01 9:30:00,30 ,454.8683,520.7283,501.2929,16.36323 twpcmbeC1.c1,1999,0110:30:00,31 ,461.6407,537.3715,512.0791, 17.5292 twpcmbeC1.c1,1999,0111:30:00,31 ,464.2303,545.4139,521.5225,17.35518 twpcmbeC1.c1,1999,0112:30:00,31 , 466.599,554.9354,525.4035,18.48297 twpcmbeC1.c1,1999,0113:30:00,31 ,470.8898,548.5212,522.0035,19.99837 twpcmbeC1.c1,1999,0114:30:00,31 , 456.384, 535.916,514.1983,21.66567 twpcmbeC1.c1,1999,0115:30:00,30 ,467.8207,525.9432,504.1396,18.31026 twpcmbeC1.c1,1999,0116:30:00,30 ,459.2923,512.6983,491.5298, 14.4436 twpcmbeC1.c1,1999,0117:30:00,30 ,454.2427,488.6543,475.6214,7.724617 twpcmbeC1.c1,1999,0118:30:00,30 ,452.1815, 467.057,460.0634,3.755741 twpcmbeC1.c1,1999,0119:30:00,30 ,447.0664,463.9404,455.9978,4.727586 twpcmbeC1.c1,1999,0120:30:00,30 ,442.1911,462.1744,454.0625,5.674902 twpcmbeC1.c1,1999,0121:30:00,30 ,439.4014,463.8749,452.8056,6.320661 twpcmbeC1.c1,1999,0122:30:00,30 ,438.3185, 464.243,451.9707,6.957178 twpcmbeC1.c1,1999,0123:30:00,30 ,436.7139,462.7939,451.4512,6.958039