datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,07 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,07 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,07 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,07 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,07 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,07 5:30:00,31 ,       0,20.14775,9.799478,4.781358
sgpcmbeC1.c1,2002,07 6:30:00,31 ,4.151789,139.8601,106.1339,34.11275
sgpcmbeC1.c1,2002,07 7:30:00,31 ,40.50805, 331.374,253.8893,84.13517
sgpcmbeC1.c1,2002,07 8:30:00,31 ,42.20459,542.8986,420.6823,148.9425
sgpcmbeC1.c1,2002,07 9:30:00,31 ,172.0634,726.8518,582.8135,169.2032
sgpcmbeC1.c1,2002,0710:30:00,31 , 237.821,859.8774,703.4022,180.6713
sgpcmbeC1.c1,2002,0711:30:00,31 ,191.4773,959.3092,785.3842,183.3649
sgpcmbeC1.c1,2002,0712:30:00,31 ,141.8349,1008.356,815.3905,214.0735
sgpcmbeC1.c1,2002,0713:30:00,31 ,109.0947,950.7629,763.8411,209.8981
sgpcmbeC1.c1,2002,0714:30:00,31 ,167.0427,870.9418,686.6369,215.8612
sgpcmbeC1.c1,2002,0715:30:00,31 ,275.7882,758.1866,609.7153,141.7315
sgpcmbeC1.c1,2002,0716:30:00,31 ,194.5705, 609.462,472.0531,115.4277
sgpcmbeC1.c1,2002,0717:30:00,31 ,8.176456, 382.597,284.0988,85.12175
sgpcmbeC1.c1,2002,0718:30:00,31 ,0.131285,210.8273,133.7096,41.13359
sgpcmbeC1.c1,2002,0719:30:00,31 ,       0,39.32815,19.60634,8.491023
sgpcmbeC1.c1,2002,0720:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0721:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0722:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0723:30:00,31 ,       0,       0,       0,       0