(1)

(2)

(3)

total

old

child

dr-t

−53.0435**

(0.034)

income

0.2547***

0.2625***

0.2665***

(0.000)

(0.000)

(0.000)

CPI

−0.9660

−7.8466

8.9249

(0.937)

(0.496)

(0.465)

people

1.2223*

0.7403

1.3305**

(0.056)

(0.149)

(0.028)

square

−0.2907**

−0.1818**

−0.3020**

(0.019)

(0.044)

(0.011)

dr-o

−2.4e+02***

(0.000)

dr-c

−5.9127

(0.824)

_cons

−2.4e+03

965.2819

−5.8e+03*

(0.430)

(0.628)

(0.057)

N

341

341

341

adj.R2

0.8479

0.8620

0.8431

F

124.2835

156.9556

131.9280