condition mean min max 4 h after light 45.043949999999995 41.7472 48.3407 8 h after light 43.61025 43.1227 44.0978 12 h after light 47.49235 46.7553 48.2294 4 h after dark 60.72635 54.991 66.4617 8 h after dark 54.685900000000004 54.5897 54.7821 12 h after dark 54.9499 54.0991 55.8007