condition mean min max 4 h after light 165.3134425 157.288066 173.338819 8 h after light 193.287074 184.070259 202.503889 12 h after light 191.166035 171.989016 210.343054 4 h after dark 170.4313575 147.766675 193.09604 8 h after dark 208.804263 207.607238 210.001288 12 h after dark 153.837928 153.837928 153.837928