=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 18-Jan-2012
Using data from the latest UHSLC JASL cd data values for 1992-2010 have been
added to the 'METRIC' dataset. Where the data from the cd overlapped with the
previous data 1990-91 the data profile appeared the same but the numbers were
slightly different.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 15-Oct-2013
Complete UHSLC dataset 1990-2012 loaded onto the 'Metric' series in the database.