condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 1.56263 1.34336 1.7819 4 h after dark 2.9523650000000004 2.38226 3.52247 8 h after dark 0.8774215 0.588403 1.16644 12 h after dark 1.6462825 0.975445 2.31712