(0.215)

(0.209)

(0.166)

Flush the toilet

0.076

0.138

0.093

(0.220)

(0.214)

(0.170)

Provincial fixed effect

Yes

Yes

Yes

Yes

Yes

Yes

Annual fixed effect

Yes

Yes

Yes

Yes

Yes

Yes

Constant term

0.098

0.424***

8.293***

8.946***

8.781***

7.578***

(0.103)

(0.135)

(0.935)

(1.050)

(1.064)

(0.833)

Sample size

2567

2092

1531

1371

1376

1953

Goodness of fit

0.081

0.159

0.206

0.213

0.214

0.176