Independence is a condition of a nation, country, or state in which its residents and population, or some portion thereof, exercise self-government, and usually sovereignty, over the territory. The opposite of independence is the status of a dependent territory.
Depending on the state. If it's a four year federal sentence you will have to do 85% ,or they takeoff 54 days a year for good behavior. Most states abdopted the NERA Act for federal funding (No Early Release Act). Meaning if you're incarcerated for a violent crime you will be required to do 85% of your sentence.
In 2012, full-time workers in the private sector took 8.3 days off on average (6.7 for own illness or disability plus 1.5 for personal or family reponsibilities). In contrast, full-time workers in the public sector took 12.4 days (10.5 days for illness or disability and 2.0 days for personal or family responsibilities).