Fetch actual working days

hi experts

i need to retrive the following data

1. actual working days of company

eg: toal calender years 28 or 30 or 31

company working days = total calender days in a month - day off' +public holidays.

2. actual working days of employee = actual working days of company - leaves.

this is from 2002

3. total absences = all kinds of absences as of my knowledge we can get this 2001

individually but i want to get in total.

please help me

regards