condition mean min max 3 h after light 137.42533333333333 131.124 145.155 6 h after light 81.1356 72.7075 86.3271 9 h after light 53.0846 40.4352 60.3883 12 h after light 44.067933333333336 35.5466 58.3138 3 h after dark 93.179 80.4132 114.951 6 h after dark 128.99933333333334 125.093 133.726 9 h after dark 137.96433333333334 132.27 147.391 12 h after dark 161.627 142.372 180.214