IMPLICIT EQUIVALENCE SCALE OF US POVERTY CALCULATION:
 

IF D4=1 AND D1 LT 65 THEN USPVEQ=0.66;
IF D4=1 AND D1 GE 65 THEN USPVEQ=0.60;
IF D4=2 AND D1 LT 65 THEN USPVEQ=0.84;
IF D4=2 AND D1 GE 65 THEN USPVEQ=0.76;
IF D4=3 THEN USPVEQ=1;
IF D4=4 THEN USPVEQ=1.28;
IF D4=5 THEN USPVEQ=1.52;
ELSE USPVEQ=(1.71+(0.15*(D4-6));