condition mean min max 4 h after light 5.947235 5.04993 6.84454 8 h after light 3.979965 3.77506 4.18487 12 h after light 3.861545 3.54211 4.18098 4 h after dark 6.164133333333333 5.59656 6.64955 8 h after dark 6.420623333333333 5.88444 7.3876 12 h after dark 6.5458300000000005 6.34387 6.70863