condition mean min max 4 h after light 14.6521315 13.855338 15.448925 8 h after light 12.572722500000001 12.157025 12.98842 12 h after light 13.220886 12.917577 13.524195 4 h after dark 22.4680785 18.551079 26.385078 8 h after dark 37.068104 35.030285 39.105923 12 h after dark 16.285139 16.285139 16.285139