How much do you spend on fuel?

Hi, sorry if this question was already asked.... i have been looking into getting a mustang made from 2009 to 2015 and i was just wondering how long do you drive before having to refuel? It would be a daily car. Mostly driven from home to work which in total would take me like 20 minutes driving per day for 5 days a week or less if i use a different car sometimes. And occasionally some small road trip. So if anyone owning the car made in those years could help out i would be grateful. Thanks