condition mean min max 3 h after light 3.75318 3.19113 4.85297 6 h after light 11.36737 9.88721 12.4293 9 h after light 49.87103333333333 42.7444 59.8185 12 h after light 80.3525475 8.59719 108.045 3 h after dark 75.2922 68.5762 88.6648 6 h after dark 64.28166666666667 60.781 67.3421 9 h after dark 35.53866666666667 34.4247 37.5138 12 h after dark 7.29449 5.89104 8.69794