Variable

Observations

Obs. with missing data

Obs. without missing data

Minimum

Maximum

Mean

Std. deviation

Pipe Breaks

851

0

851

0

1

0.146

0.353

Material

851

0

851

0

1

0.831

0.375

Age

851

0

851

0

3

1.231

1.033

Traffic Loading

851

0

851

0

2

0.157

0.491

Diameter

851

0

851

0

1

0.114

0.318

Depth

851

0

851

0

1

0.155

0.362

Length

851

0

851

0

1

0.927

0.26