Belgium                 Data contains Household Consumption (C) and GDP
                        (Y) for Belgium from 1969 to 1998.
Japan                   Data contains Household Consumption (C) and GDP
                        (Y) for Japan from 1978 to 2007.
Srilanka                Data contains Household Consumption (C) and GDP
                        (Y) for Sri Lanka from 1978 to 2006.
supmz                   Detecting Structural Change with
                        Heteroskedasticity
