var saleprice =[
[1479490337000,2995,47329],
[1482344708000,3495,48327],
[1486123182000,3495,48327],
[1487402590000,3495,48327],
[1492722142000,3495,48327],
[1529634738000,2900,55306],
[1532395501000,3100,55687],
[1534790437000,2700,55931],
[1573584196000,3500,60427],
]