condition mean min max 4 h after light 211.138407 175.769986 246.506828 8 h after light 217.23006800000002 216.920387 217.539749 12 h after light 215.8471245 208.598326 223.095923 4 h after dark 256.4968025 214.30001 298.693595 8 h after dark 216.982324 187.171655 246.792993 12 h after dark 182.760647 182.760647 182.760647