Cash sales accounted for 31.7 percent of total home sales in August 2015, down from 34.9 percent in August 2014, according to a new report from CoreLogic, a real estate analytics firm.

On a month-over-month basis, nationwide cash sales share increased by 0.8 percent in August 2015 compared with July 2015. Cash sales share typically increases month over month in August, but due to seasonality in the housing market, cash sales share comparisons should be made primarily on a year-over-year basis, according to CoreLogic.

The cash sales share peaked in January 2011 when cash transactions accounted for 46.5 percent of total home sales nationally. Prior to the housing crisis, the cash sales share of total home sales averaged approximately 25 percent. If the cash sales share continues to fall at the same rate it did in August 2015, the share should hit 25 percent by mid-2017.