Hamptons housing price indicators and the number of sales were up sharply over prior year levels. Median sales price jumped 26.5% to $975,000 from the prior year quarter. Average sales price increased 31% to $2,062,072 over the same period. Price momentum increased towards the end of the year as sales rose and inventory remained stable. Year-to-date median sales price and average sales price increased 13.9% and 8.2% respectively from the same period last year. The luxury market, representing the top 10% of all sales, began at $4,100,000 in the fourth quarter, up a modest 4.1% from the prior year period despite the higher gains seen in the price indicators…