condition mean min max 4 h after light 1.9640266666666666 1.26202 2.62856 8 h after light 1.9610473333333334 0.752582 2.78476 12 h after light 2.34978 1.56057 3.75039 4 h after dark 5.16097 4.31506 6.48791 8 h after dark 4.4485399999999995 2.61096 5.37659 12 h after dark 2.465046666666667 1.70813 2.90769