condition mean min max 4 h after light 207.297077 197.719317 216.874837 8 h after light 189.9323615 189.017282 190.847441 12 h after light 178.482045 175.283464 181.680626 4 h after dark 210.524313 159.456529 261.592097 8 h after dark 244.461541 243.797895 245.125187 12 h after dark 172.671561 172.671561 172.671561