Age Groups, interaction with sex category PLUS Quarterly dummies, i.e.:
 MODEL: 
CON2= A_M_A1*WIN2*(SEX=M)*(AGE_GROUP=1)+ ... +A_M_A6*WIN2*(SEX=M)*(AGE_GROUP=6)+
    A_F_A1*WIN2*(SEX=F)*(AGE_GROUP=1) + ... + A_F_A6*WIN2*(SEX=F)*(AGE_GROUP=6)+
    A_Q1*(Quarter=1)+...+A_Q4*(Quarter=4)

 Number of observations = 1039  E'PZ*E = .388364E-32

                          Standard
 Parameter  Estimate        Error       t-statistic   P-value
 A_M_A1     .096481       .112662       .856372       [.392]
 A_M_A2     .183785       .078192       2.35042       [.019]
 A_M_A3     .109163       .010851       10.0597       [.000]
 A_M_A4     .129789       .097590       1.32995       [.184]
 A_M_A5     .091034       .054386       1.67385       [.094]
 A_M_A6     .343976       .165029       2.08433       [.037]
 A_F_A1     .101738       .147344       .690479       [.490]
 A_F_A2     .200764       .099004       2.02784       [.043]
 A_F_A3     .067755       .087633       .773169       [.439]
 A_F_A4     .140693       .098146       1.43351       [.152]
 A_F_A5     .150978       .104119       1.45006       [.147]
 A_F_A6     -.032408      .037578       -.862438      [.388]
 A_Q1       9.73471       1.14128       8.52962       [.000]
 A_Q2       9.31802       .938686       9.92666       [.000]
 A_Q3       7.28801       .749857       9.71920       [.000]
 A_Q4       7.50352       .785417       9.55354       [.000]

 Standard Errors computed from   heteroscedastic-consistent matrix 
 (Robust-White)

 Dependent variable: CON2

        Mean of dep. var. = 4.60932  Std. error of regression = 6.96439
   Std. dev. of dep. var. = 9.07813                 R-squared = .452851
 Sum of squared residuals = 49618.3        Adjusted R-squared = .444828
    Variance of residuals = 48.5028             Durbin-Watson = 1.89175 [<.141]