condition mean min max 0 h after light 167.8525 166.69 169.015 4 h after light 189.21300000000002 181.304 197.122 8 h after light 111.63499999999999 102.783 120.487 4 h after dark 55.94455 54.4175 57.4716 8 h after dark 147.2775 145.851 148.704 12 h after dark 170.17000000000002 166.933 173.407