Earthquakes frequency

// Average and median earthquakes frequency in last 11 years (2006-2016):

var earthquakes = [{
    "level":"M8",
    "avg":1.4,
    "med":1
},{
    "level":"M7",
    "avg":15.4,
    "med":16
},{
    "level":"M6",
    "avg":148.3,
    "med":142
},{
    "level":"M5",
    "avg":1717.5,
    "med":1712
}];