In 2012, doctors working in primary care had a median compensation of $220,942 while those working in a specialty had a median of $396,233, according to the Bureau of Labor Statistics. Choosing between becoming a doctor or a physician assistant may likely require students to weigh more than just their potential salary.
Ordinary Maintenance. On average, a deck made from pressure-treated pine will last 15 to 20 years before succumbing to the accumulated stress of direct sunlight, rain, salty ocean breezes, insect infestation and repeated cycles of thermal expansion and contraction.ressure-treated pine remains the most commonly used decking material, reports the Popular Mechanics website, but plastic composite decking planks have earned a growing percentage of the marketplace -- in part because homeowners believe these pricey alternatives might outlast genuine wood.
Eight to 10 years. A linoleum floor fares better at 25 years, and a laminate floor can last 15 to 25 years. How long should your mattress last? According to Consumer Reports, about 10 years if you don't let your kids use it as a trampoline. Mattress advertising campaigns suggest you should buy a new one every eight years. However, your backside is probably the best judge of when to replace your mattress.