condition mean min max 0 h after light 1.684885 0.0 3.36977 2 h after light 0.0 0.0 0.0 4 h after light 2.26148 0.0 4.52296 8 h after light 2.3952 1.0138 3.7766 12 h after light 0.227626 0.0 0.455252 2 h after dark 0.0 0.0 0.0 4 h after dark 2.053695 0.0 4.10739 8 h after dark 0.3474295 0.0 0.694859 12 h after dark 0.0 0.0 0.0