condition mean min max 2 h after light 0.9388145 0.0 2.02766 6 h after light 0.4930116666666667 0.145771 0.94034 10 h after light 0.4744485 0.120004 1.34688 14 h after light 0.5331515 0.0 1.94984 18 h after light 0.6451138333333333 0.167455 0.933262 2 h after dark 0.8615836666666666 0.228925 1.68736