MAYFIELD VILLAGE, OHIO, Jan. 24, 2024 (GLOBE NEWSWIRE) -- The Progressive Corporation (NYSE:PGR) today reported the following results for December 2023 and the fourth quarter of 2023:   December   Quarter  (millions, except per share amounts and ratios; unaudited) 2023  2023  2022  Change Net premiums written$4,875.9 $15,129.8 $12,460.2  21%Net premiums earned$5,310.4 $15,772.6 $12,891.5  22%Net income$901.2 $1,987.8 $826.4  141%Per share available to common shareholders$1.53 $3.37 $1.40  141%Total pretax n ...