The definition of octane is the fuelâs ability to resist combustion from pressure or heat and wait for the arcing of the spark plug. The higher the octane, the better the ability of the fuel to resist auto-combustion. A low-octane fuel will be prone to auto-combust via heat or pressure.
The total value of world income is closing in on $70 trillion (Â£43.9tn) per year, and there are seven billion people in the world, so the average income is heading towards $10,000 (Â£6,273) per person per year.
Update: See the SHRM Online article Salary Budgets Expected to Rise 3% in 2017. U.S. employees can expect an average base salary increase of 3.1 percent in 2016, up only slightly, if at all, from the raises they received this year, according to a WorldatWork survey of its members. WorldatWork is an association of total rewards professionals, mostly at large North American companies.