You're right to avoid kriging with only 14 points that represent percents. Unfortunately, you probably won't be able to fit a reliable/accurate model with so few points no matter which method you use. If you absolutely have to interpolate them, you should try as many interpolation methods as you can and hope one of them stands out from the rest. You may want to try Natural Neighbors from Spatial Analyst as well. Thanks, Eric. I had not yet tried Natural Neighbors, but I'll give a shot. I Might just have to accept that interpolating this data can not be done very accurately.
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