condition mean min max 4 h after light 3.662345666666667 3.5730730000000004 3.838513 8 h after light 2.58543 1.689759 3.173797 12 h after light 1.7347753333333333 1.498481 1.9138369999999998 16 h after light 3.5662146666666668 3.3013739999999996 4.022516 4 h after dark 2.9576813333333334 2.6698060000000003 3.3941559999999997 8 h after dark 1.8866260000000001 1.669716 2.059921