condition mean min max 0 h after light 0.605352 0.172694 1.03801 4 h after light 0.9421625 0.351925 1.5324 8 h after light 0.6908235 0.527376 0.854271 4 h after dark 0.67977 0.67843 0.68111 8 h after dark 0.3415975 0.340164 0.343031 12 h after dark 0.9391484999999999 0.843527 1.03477