datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,11 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,11 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,11 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,11 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,11 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,11 5:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,11 6:30:00,30 ,       0,1.053592,0.132436, 0.26361
sgpcmbeC1.c1,1999,11 7:30:00,30 ,1.112804,85.88906,40.78016,20.80066
sgpcmbeC1.c1,1999,11 8:30:00,30 ,22.93408,280.1893,189.6451,56.37871
sgpcmbeC1.c1,1999,11 9:30:00,30 ,44.16665,459.7213,342.9063,93.91994
sgpcmbeC1.c1,1999,1110:30:00,30 ,81.36243,595.7571,483.3093,90.42122
sgpcmbeC1.c1,1999,1111:30:00,30 ,32.98668,673.5999,550.2642,113.6251
sgpcmbeC1.c1,1999,1112:30:00,30 ,34.52961,687.7239,554.1759,119.9716
sgpcmbeC1.c1,1999,1113:30:00,30 ,37.35928,637.1907,516.9734,106.7387
sgpcmbeC1.c1,1999,1114:30:00,30 ,65.29607,525.9227,402.3228,100.2073
sgpcmbeC1.c1,1999,1115:30:00,30 , 14.4595,366.0983, 266.116,  69.951
sgpcmbeC1.c1,1999,1116:30:00,30 ,9.952795,169.3658,105.8885,32.87401
sgpcmbeC1.c1,1999,1117:30:00,30 ,0.179838,23.58286,7.511345,5.077653
sgpcmbeC1.c1,1999,1118:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1119:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1120:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1121:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1122:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1123:30:00,29 ,       0,       0,       0,       0