Marital status of head of household (Z3). In general, married farmers usually have more consumption expenses than unmarried farmers. According to the questionnaire, the marital status of household heads is divided into married and unmarried, with values of 1 and 0 respectively. The questionnaire assigned a value of 1 when the head of household answered that he was married. The value is 0 when the head of household answers either unmarried, cohabiting, separated, divorced or widowed