May was the best month of all time for certified pre-owned sales and beat the previous record (coincidentally, May of 2014) by more than 12 percent, according to Autodata Corp.

Overall, there were an estimated 232,842 CPO sales in May, a 12.2-percent increase over the same month a year ago, the firm reported Wednesday afternoon.

In addition to being a new record, May’s CPO sales total pushed the year-to-date tally above 1 million.

Through five months, there have been 1.06 million certified sales, which is 11.6 percent ahead of last year’s pace.

Not to mention, the daily selling rate of 8,955 units in May was an all-time high, as well, Autodata pointed out.

Additionally, the company listed these programs as having best-ever CPO results: FCA, Ford Motor Co., Infiniti, Lexus, Mini, Nissan, Porsche and Subaru.

Plus, Autodata said, Volvo sales were at a recent high.