condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.03405335 0.0 0.0681067 8 h after light 0.1044878 0.0683416 0.140634 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0