condition mean min max 1 h after light 7.15359604 6.964710305 7.342481775 3 h after light 6.898844648 6.4021090229999995 7.507773027000001 5 h after light 7.147555622333334 6.058266727 8.529270051000001 7 h after light 7.81299809 6.677396784 8.78728095 9 h after light 7.494484471666667 5.473475412000001 8.788140931000001 11 h after light 7.499686895666667 6.5477589410000006 8.429479338 1 h after dark 8.140788865 7.114593077 9.05264436 3 h after dark 8.657760712333333 8.635568316 8.701181752 5 h after dark 8.643322627 8.175994425 9.152919649 7 h after dark 8.96724986 8.562804511 9.699066493 9 h after dark 8.066503156666666 7.5235575 8.904847412 11 h after dark 7.476423558333334 7.062803929 7.765703206