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 0.1069026 0.0429382 0.170867 4 h after dark 0.11313265 0.0761453 0.15012 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0185158 0.0 0.0370316