How do you sort Beker and Piper characteristic frequencies in order from least common to most common frequency?

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Hello, I am trying to figure out how to sort the characteristic frequency of each letter in the table for beker and piper. I currently only have the code that will output the beker and piper table in order from the alphabet but I was wondering if there is a way to sort them from least to greatest based on their frequency?

Any information helps and here is the code I have so far

N = AlphabeticStrings()

table = N.characteristic_frequency(table_name="beker_piper")

sorted(table.items())