condition mean min max 4 h after light 2404.0 2404.0 2404.0 8 h after light 1688.5500000000002 1566.4 1810.7 12 h after light 1319.4 1125.5 1513.3 4 h after dark 1170.85 1133.6 1208.1 8 h after dark 1473.35 1096.6 1850.1 12 h after dark 2032.8000000000002 1572.8 2492.8