What is the normal fuel consumption for a 1995 Toyota Carina E 1.6 CC 4A engine?

That sounds about right for that model. The only things you could do is make the car as light and easy running as possible, e.g.

• remove the spare tyre and carry a patch kit and air compressor instead.
• fill your fuel tank only 50%. This should save a good 20kg to 25kg.
• go on a diet ;)
• Get alloy wheels if you don't have already
• inflate your tyres properly
• take it to a tuner to remap the engine management unit. They usually lean out the air/fuel ratio to give you a bit more performance, but at the same time a leaner air/fuel ratio means you're using less fuel per cylinder stroke. This will make the car run slightly hotter, but seeing as it's not a turbo vehicle, it's not a problem.

1. Avoid idling
2. Drive in Top gear when possible
3. Keep the Tires inflated to factory specifications
4. Avoid hard accelerations and decelerations