condition mean min max 4 h after light 1.06098 0.0 2.12196 8 h after light 0.805585 0.0 1.61117 12 h after light 4.078775 1.87756 6.27999 4 h after dark 3.69944 0.0 6.55588 8 h after dark 2.8472733333333333 0.0 5.39752 12 h after dark 1.67626 0.0 5.02878