condition mean min max 0 h after light 1.94482 1.17077 2.71887 2 h after light 3.337355 3.14739 3.52732 4 h after light 7.667025 6.56878 8.76527 8 h after light 9.336495 6.55169 12.1213 12 h after light 7.832745000000001 7.65542 8.01007 2 h after dark 7.18541 6.59347 7.77735 4 h after dark 4.52478 4.52004 4.52952 8 h after dark 3.5667099999999996 3.39789 3.73553 12 h after dark 2.5353450000000004 2.23294 2.83775