condition mean min max 2 h after light 12.983341666666668 8.26915 15.7992 6 h after light 11.320143333333332 7.85585 15.3281 10 h after light 11.328763333333333 8.93976 17.1182 14 h after light 11.656455000000001 8.31262 14.7763 18 h after light 12.63208 8.24407 16.5123 2 h after dark 15.9388 10.2836 20.9023