data-in
-------
23/10/2003, 1.86
23/10/2003, 2.26
23/10/2003, 0.74
23/10/2003, 1.15
23/10/2003, 1.61
23/10/2003, 1.55
23/10/2003, 1.11

data-out
--------
23/10/2003, 1.91
23/10/2003, 1.53
23/10/2003, 0.46
23/10/2003, 1.53
23/10/2003, 0.72
23/10/2003, 1.08
23/10/2003, 0.52