condition mean min max 4 h after light 58.316900000000004 55.4127 61.2211 8 h after light 49.80345 49.6673 49.9396 12 h after light 52.504999999999995 49.8022 55.2078 4 h after dark 66.464 65.9408 66.9872 8 h after dark 71.73564999999999 70.8255 72.6458 12 h after dark 67.588 65.738 69.438