This data given: GDP=$110; Income earned by citizens abroad=$5; income foreigners earn here=$15; loss from depreciation=$4; indirect business taxes=$6; business subsidies=$2; retained earnings=$5; corporate income taxes=$6; social insurance contributions=$10; interest paid to households by govt=$5; transfer payments to households from govt=$15; personal taxes=$30; non-tax payments to govt=$5.??Disposable personal income = ?