condition mean min max 2 h after light 0.4084765 0.30992 0.579176 6 h after light 0.1905345 0.115157 0.383705 10 h after light 0.2936726666666667 0.174246 0.426259 14 h after light 0.26026083333333333 0.107434 0.443451 18 h after light 0.3172703333333333 0.150465 0.509904 2 h after dark 0.5037925 0.351394 0.658157