Spark plug gap?

Hi, i want to change the spark plugs on my matiz but i don't have a handbook, can anyone tell me what the spark plug gap is please.
Detail of the car its a 1999 SE
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This is the G20 section, you have a Sentra? If you use platinum plugs, they should be pre-gapped to the propper specs, but, The copper NGK V-power spark plugs should be gapped at .031-.035 for best performance.The platinum NGK spark plugs should be gapped at .045 for best performance. These are for a 2.0 (Sr20De) engine...