condition mean min max 3 h after light 6.03619 4.25344 8.58412 6 h after light 4.80495 2.63924 6.95393 9 h after light 2.731853333333333 2.67372 2.82481 12 h after light 2.30021 1.42905 2.75422 3 h after dark 2.59248 1.01046 4.12609 6 h after dark 1.3183966666666667 1.08247 1.66504 9 h after dark 1.736035 0.998575 2.61996 12 h after dark 2.5967666666666664 1.70553 4.36612