datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,02 0:30:00,18 , 179.618,377.7506,254.0535,48.84599
sgpcmbeC1.c1,2002,02 1:30:00,18 ,177.9888, 382.016,253.0253,48.08448
sgpcmbeC1.c1,2002,02 2:30:00,18 ,177.0528, 381.048,251.7087,48.55538
sgpcmbeC1.c1,2002,02 3:30:00,18 ,177.4238,363.1972,254.5848,49.29919
sgpcmbeC1.c1,2002,02 4:30:00,18 , 177.644,361.1089,252.3855,  48.798
sgpcmbeC1.c1,2002,02 5:30:00,18 ,177.1902,358.8932, 251.216, 49.4085
sgpcmbeC1.c1,2002,02 6:30:00,18 ,175.2473,356.4927,250.0404,49.28485
sgpcmbeC1.c1,2002,02 7:30:00,18 ,175.8607,327.3698,250.6042,45.56952
sgpcmbeC1.c1,2002,02 8:30:00,18 ,175.9343,309.7662,249.9564, 38.0979
sgpcmbeC1.c1,2002,02 9:30:00,18 ,175.3672,320.8375,252.7423,37.99374
sgpcmbeC1.c1,2002,0210:30:00,18 ,177.2226,323.0638,  255.81,38.21642
sgpcmbeC1.c1,2002,0211:30:00,18 ,184.2685,328.1362,262.3609,37.90687
sgpcmbeC1.c1,2002,0212:30:00,18 ,184.1684,337.5129,269.8071,37.90949
sgpcmbeC1.c1,2002,0213:30:00,18 ,186.6443, 356.167, 271.167,36.33405
sgpcmbeC1.c1,2002,0214:30:00,18 ,189.4218,342.9417,269.5947,31.51682
sgpcmbeC1.c1,2002,0215:30:00,18 ,194.4526,359.6139,271.8054,33.57813
sgpcmbeC1.c1,2002,0216:30:00,19 ,195.2555, 381.135,271.5504,42.07128
sgpcmbeC1.c1,2002,0217:30:00,19 ,192.7906,374.6328,270.1685, 43.7618
sgpcmbeC1.c1,2002,0218:30:00,19 ,189.5647,372.8821,263.1249,43.35689
sgpcmbeC1.c1,2002,0219:30:00,19 ,187.4805,372.8385,263.1858,43.49383
sgpcmbeC1.c1,2002,0220:30:00,19 ,185.3472,360.5483,257.6258,42.77864
sgpcmbeC1.c1,2002,0221:30:00,19 , 183.025, 330.293,253.7932,38.16513
sgpcmbeC1.c1,2002,0222:30:00,19 ,181.8177, 324.256,249.4866, 35.8279
sgpcmbeC1.c1,2002,0223:30:00,19 ,180.9705,328.4765,249.7892,37.68267