I joined teaching as mid career entrant in 2005.That time my pay given was $3548 and a couple of promotions in grade later,in 2010 my pay increased to $6025.Not exactly within 5 years but thereabouts.Anyway,I retired in Dec 2011 having achieved financial freedom from a combination of frugality and hard work plus investments over the years that paid off handsomely.I am currently deriving income from a combination of these investments.But having said that,teaching is perhaps one of the more demanding career in the civil service.Do consider very carefully.