condition mean min max 4 h after light 2.0449900000000003 1.94814 2.14184 8 h after light 2.100715 1.74307 2.45836 12 h after light 3.08345 2.81124 3.35566 4 h after dark 4.351345 4.07162 4.63107 8 h after dark 3.3487549999999997 3.01699 3.68052 12 h after dark 2.144265 1.98014 2.30839