Data analysis, data mining of past customer sales CSV

We currently have CSV files of all our past sales for 24 months and require someome to analyse the data to come up with statistics and percentages of: - Top selling products - % of Male and Female Shoppers - % of sales per country - % of sales per state - Average dollar spent - Number of repeat customers - Total sales per month All data must be analysed on a month-to-month basis then totals for a 12 month period must be provided also. All the data is already sorted and only the data needs to be analysed now. We will select the winning bidder based on the lowest bid and fastest turn around time. They also need experience in this field and we will require 1 sample file to be complete before selecting winning bidder. Thanks