condition mean min max 0 h after light 0.7213505 0.577698 0.865003 4 h after light 1.092207 0.568564 1.61585 8 h after light 0.358639 0.146753 0.570525 4 h after dark 0.6391155 0.283181 0.99505 8 h after dark 0.641932 0.567947 0.715917 12 h after dark 1.500746 0.985862 2.01563