condition mean min max 0 h after light 0.427128 0.388676 0.46558 4 h after light 0.5904309999999999 0.153012 1.02785 8 h after light 0.619707 0.394944 0.84447 4 h after dark 0.6491389999999999 0.609679 0.688599 8 h after dark 0.805985 0.764231 0.847739 12 h after dark 0.496949 0.387462 0.606436