condition mean min max 0 h after light 2.010515 1.76448 2.25655 4 h after light 3.913205 2.79244 5.03397 8 h after light 13.75505 11.4647 16.0454 4 h after dark 11.6906 10.6238 12.7574 8 h after dark 6.126005 6.04032 6.21169 12 h after dark 2.3456099999999998 1.53716 3.15406