condition mean min max 4 h after light 3.35264 2.75784 3.94744 8 h after light 3.55803 3.36901 3.74705 12 h after light 3.9772600000000002 3.63057 4.32395 4 h after dark 6.045256666666667 5.81773 6.28946 8 h after dark 5.65056 4.85774 6.26384 12 h after dark 5.160496666666666 4.49703 6.23164