condition mean min max 4 h after light 121.9 121.9 121.9 8 h after light 148.35 137.0 159.7 12 h after light 128.65 109.7 147.6 4 h after dark 103.10000000000001 71.4 134.8 8 h after dark 99.6 94.6 104.6 12 h after dark 97.75 93.1 102.4