var saleprice =[
[1328155308000,2300,24953],
[1333053346000,2500,25969],
[1334811162000,1925,25166],
[1420808124000,2675,37815],
[1463355575000,2590,37814],
[1473829248000,1925,47571],
[1546455685000,3109.25,57274],
[1568058662000,3431.18,59986],
[1589250067000,3637.5,38158],
[1597194101000,3195,63139],
]