I've prepared the following plots showing the trending of CAL parameters (pedestals, ped widths, LACs, FLEs, FHEs, ULDs) over 9 month (July 2008 - March 2009).

Pedestals:

Pedestal widths:

LAC thresholds:

FLE thresholds:

FHE thresholds:

ULD thresholds - LEX8:

ULD thresholds - LEX1:

ULD thresholds - HEX8: