datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,03 0:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,03 1:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,03 2:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,03 3:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,03 4:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,03 5:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,03 6:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,03 7:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,03 8:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,03 9:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,0310:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,0311:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,0312:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,0313:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,0314:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,0315:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,0316:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,0317:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,0318:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,0319:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,0320:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,0321:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,0322:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,1999,0323:30:00,0 ,       .,       .,       .,       .