1.9 Tdi poor fuel cosumption

Car has done 150,000 miles and is used as a taxi.  Fuel consumption is poor even on a long run and this is based on owning an Octavia with the same engine previously.

I have checked all the usual things such as tyre pressures, wheel alignment, binding brakes and all filters have been recently changed.  I visited fellow forum member Martin (Gizmo) last weekend and have some readings below from VCDS.

Car starts and drives ok, but I would appreciate it if you can see anything obvious which might explain the poor fuel consumption and how I can rectify it.

Engine speed   819/min

Injection start   0.0

Injection duration   8.7KW

Torsion value   0.0KW (adjusted from -1.5)

Group 13

Injection quantity

Cyl 1      Cyl 2      Cyl 3      Cyl 4

-1.32      0.09       0.47       0.71

Group 15

Engine torque   56.1N/M

Fuel consumption   1.0l/hr

Torque request   0.0N/M