datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,07 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,07 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,07 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,07 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,07 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,07 5:30:00,31 ,       0,22.30726,11.41755,6.247791
sgpcmbeC1.c1,1999,07 6:30:00,31 ,       0,161.6545,107.3108, 41.7189
sgpcmbeC1.c1,1999,07 7:30:00,31 ,2.231398,346.5104,274.1957, 86.6256
sgpcmbeC1.c1,1999,07 8:30:00,31 ,19.96809,574.4741,468.8227,124.7415
sgpcmbeC1.c1,1999,07 9:30:00,31 ,109.9738,749.6722,643.9955,131.7831
sgpcmbeC1.c1,1999,0710:30:00,31 ,288.2269,871.5939,772.3372,121.8717
sgpcmbeC1.c1,1999,0711:30:00,31 ,529.0886,949.6697,867.0023, 114.935
sgpcmbeC1.c1,1999,0712:30:00,31 ,438.0589,1004.375, 890.847,140.7674
sgpcmbeC1.c1,1999,0713:30:00,31 ,445.7083,966.9307,863.0808,114.8125
sgpcmbeC1.c1,1999,0714:30:00,31 ,434.9519,874.3971, 789.148,96.42188
sgpcmbeC1.c1,1999,0715:30:00,31 , 424.549,788.2004,690.9573,70.20351
sgpcmbeC1.c1,1999,0716:30:00,31 ,309.5718,585.3351,527.0355,54.79608
sgpcmbeC1.c1,1999,0717:30:00,31 ,194.9697, 388.499,345.8786,36.69965
sgpcmbeC1.c1,1999,0718:30:00,31 ,42.83415,191.6011,150.9803,32.84514
sgpcmbeC1.c1,1999,0719:30:00,31 ,3.112658,38.27339,24.27055,9.078886
sgpcmbeC1.c1,1999,0720:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0721:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0722:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0723:30:00,31 ,       0,       0,       0,       0