plotting a 3d graph through interpolation technique

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MatLab

Hi,

i wanted to plot 3d a graph through surf and plot using interpolation technique my data's are as follow:
x1=(1:1:12) % range defined for no of equipments%
x2=(1:1:53) % no of weeks in 2012%
z=[1,0,2,0,2,0,1,0,2,0,2,0; % n=53(rows) and m=12(columns) z is matrix of(x1,x2)%
0,1,0,2,0,2,0,1,0,2,0,1;
....
....
.....
2,0,2,0,1,0,2,0,1,0,0,1;]


i m not able to interpolate above data, can u suggest ,,,,