condition mean min max 4 h after light 3.816648 3.542955 4.1773 8 h after light 2.569725 1.5710819999999999 3.071972 12 h after light 2.5061216666666666 1.536858 4.127347 16 h after light 3.6884196666666664 2.81777 4.786664 4 h after dark 4.819069 2.960009 8.074992 8 h after dark 1.8288153333333332 1.653227 1.944435