Looking for help to solve a problem using SAS data set

[Ra6]

Hello good people,

Recently, I have started using SAS for analyzing data and I did not have any prior experience regarding using SAS for data analysis. I will really appreciate if anyone please help me to solve the problem below. I want to show the effect of average snow depth on bulk density (with three depths 0-5, 5-10 and 10-20).  Basically, I will have to find out that bulk density will increase or decrease for average snow depth. I have also attached the data file here.

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data Data;
Input plot $ BD_zero_to_five BD_five_to_ten BD_ten_to_twenty $ Average_snow_depth;

datalines;
1 1.58 2.29 1.59 12
1 1.20 1.81 1.41 12
1 1.28 1.33 1.82 12
1 1.46 1.97 1.39 12
1 1.17 1.54 1.09 12
1 1.28 1.59 1.23 12
1 1.41 1.53 1.67 12
1 1.21 1.37 1.40 12
1 1.54 1.87 1.26 12
1 1.28 1.70 1.30 12
1 1.21 1.65 1.55 12
1 1.33 1.86 1.69 12
2 1.25 1.36 1.15 12
2 1.58 1.86 1.75 12
2 1.36 1.60 1.59 12
2 1.03 1.72 1.43 12
2 1.03 1.55 1.16 12
2 1.04 1.49 1.30 12
2 1.28 1.24 1.17 12
2 1.18 2.10 1.66 12
2 1.38 1.61 1.32 12
2 1.28 1.51 1.33 12
2 1.26 1.53 1.31 12
2 1.44 1.58 1.85 12
;

[PaigeMiller]

Is this just a part of your data? Because as it is, Average_snow_depth is a constant value of 12, and no such analysis is possible.

[Ra6]

yes, that's  a part but the rest of the data for average snow depth is also constant 

[Kurt_Bremser]

Without a change in a certain column, there's nothing to analyze. "All roads lead to Rome", so it doesn't matter which one you take, so to say.