condition mean min max 0 h after light 128.8995 123.626 134.173 4 h after light 20.575499999999998 16.2451 24.9059 8 h after light 12.63795 10.117 15.1589 4 h after dark 71.50925 66.7601 76.2584 8 h after dark 62.8335 54.7012 70.9658 12 h after dark 78.74055 68.7732 88.7079