condition mean min max 2 h after light 7.558143333333334 7.29267 7.97422 6 h after light 8.465053333333334 7.63548 9.12704 10 h after light 9.36617 8.88031 9.95974 2 h after dark 8.880826666666668 7.76502 10.0843 6 h after dark 8.20878 8.03702 8.38803 10 h after dark 7.32135 7.30889 7.34354