condition mean min max 0 h after light 6.418555 5.85016 6.98695 2 h after light 8.97725 7.8443 10.1102 4 h after light 4.621535 3.15523 6.08784 8 h after light 3.600225 3.20696 3.99349 12 h after light 2.4988099999999998 2.33912 2.6585 2 h after dark 1.668205 1.59848 1.73793 4 h after dark 4.57569 3.73076 5.42062 8 h after dark 9.465055 7.57861 11.3515 12 h after dark 8.096599999999999 6.62951 9.56369