condition mean min max 0 h after light 5.245595 5.17367 5.31752 4 h after light 0.134708 0.132492 0.136924 8 h after light 0.03323735 0.0 0.0664747 4 h after dark 0.463101 0.329948 0.596254 8 h after dark 0.6314445 0.595569 0.66732 12 h after dark 2.470285 1.11586 3.82471