Fill in a Spreadsheet with Data

Enter miles for 2015 milage log. enter star odometer add 10-50 miles per day for each day through the year. I have done the first month and last month as a guide, as well as last year's mileage log (2014 mile log) so you can understand the project. I just need the miles to fill in the middle. It doesn't need to be exact just put somewhere between 10-150 miles per day unless the description says "No Miles reported". Look over Jan odometer and December odometer to make sure the numbers will add up correctly.