condition mean min max 4 h after light 1.7024249999999999 1.67669 1.72816 8 h after light 1.294585 1.2395 1.34967 12 h after light 1.483235 1.31952 1.64695 4 h after dark 2.51946 2.19652 3.08951 8 h after dark 1.4036166666666667 1.23234 1.50661 12 h after dark 1.6245833333333333 1.44614 1.85939