As a continuous variable (Dataset: Labour Force Survey Two-Quarter Longitudinal Dataset, April - September, 2006, Filename: lgss06 ):
Mean: 3.235, Max: 4.000, Min: -9.000, Median: 4.000, 3rd Quartile: 4.000, 1st Quartile: 4.000.
As a continuous variable (Dataset: Labour Force Survey Five-Quarter Longitudinal Dataset, September 2004 - November 2005, Filename: lgaut045 ):