condition mean min max 0 h after light 0.0854105 0.0 0.170821 4 h after light 0.0840605 0.0 0.168121 8 h after light 0.0 0.0 0.0 4 h after dark 0.1678 0.167469 0.168131 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0832895 0.0 0.166579