condition mean min max 0 h after light 43.4213 42.6186 44.224 4 h after light 40.43315 39.3855 41.4808 8 h after light 38.3322 35.8713 40.7931 4 h after dark 42.2635 36.6091 47.9179 8 h after dark 47.874 47.6345 48.1135 12 h after dark 49.81995 49.8031 49.8368