condition mean min max 4 h after light 153.0115 151.607 154.416 8 h after light 135.82 119.582 152.058 12 h after light 146.6425 136.818 156.467 4 h after dark 201.93566666666666 194.096 207.191 8 h after dark 228.59566666666666 218.528 236.417 12 h after dark 195.353 183.898 204.578