While the number of sales slipped year over year for the eighth decrease in nine quarters, it was the lowest rate of decline since the fall of 2017. Without the significant year over year skew caused by the introduction of the Mansion tax in the prior two quarters, the market-wide number of sales declined modestly by 1.2% this quarter to 2,404 from the same quarter last year. However, the overall number of sales below the $5 million threshold…