2013 2014 2015 2016 2016 2017 2019 2019家庭尺寸4.2 4.2 4.2 4.2 4.2 4.2 4.3 4.4 4.5(1.6)(1.6)(1.6)(1.6)(1.7)(1.7)(1.7)(1.7)(1.7)主要购物者的年龄47.9 48.9 48.3 48.2 48.6 48.6 48.6 49.3 49.3 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4(14.5)(14.5)(14.7)(14.7)(14.7)(14.7) (15.5) (15.5) Number of cars 0.5 0.6 0.7 0.7 0.7 0.7 0.7 (0.7) (0.7) (0.8) (0.7) (0.7) (0.7) (0.8) Number bathrooms 1.3 1.3 1.3 1.3 1.3 1.3 1.3 (0.6) (0.6) (0.6) (0.6) (0.6) (0.6) (0.7) Number bedrooms 2.9 3.0 3.1 3.0 3.0 3.0 3.1 (1.0) (2.4) (1.5) (1.0) (1.0) (1.0) (1.0) Household head's education Lower than high school 42% 40% 37% 32% 31% 28% 27% High school 37% 38% 40% 42% 42% 45% 44% Higher than high school 21% 22% 23% 25% 27% 28% 29% Socioeconomic status (SES) ABC1 (highest) 8% 8% 8% 8% 8% 8% 7% C2 17% 17% 17% 16% 16% 17% 16% C3 27% 27% 27% 27% 27% 27% 28% DE (lowest) 49% 49% 49% 49% 49% 48% 49% Region North 13% 13% 12% 13% 13% 13% 13% Center 64% 63% 63% 63% 63% 62% 62% South 24% 24% 24% 24% 24% 25% 25%的家庭月数量。11,636 23,455 23,292 23,385 22,762 22,684 11,177注:样本将于2013年7月开始,于2019年6月结束。SES的定义基于智利的关联229