condition mean min max 4 h after light 1.2819065 0.988203 1.57561 8 h after light 1.224235 1.16203 1.28644 12 h after light 1.5768300000000002 1.53173 1.62193 4 h after dark 2.21914 1.97114 2.48413 8 h after dark 2.123193333333333 1.47155 2.76951 12 h after dark 1.4136333333333333 0.28355 2.41422