condition mean min max 4 h after light 3.487808 3.4022900000000003 3.6251029999999997 8 h after light 2.715033 1.603895 3.484479 12 h after light 1.617571 1.418902 1.781225 16 h after light 4.541719 3.158083 7.210311999999999 4 h after dark 3.401401 2.5295490000000003 4.43651 8 h after dark 2.4879716666666667 1.635068 3.088828