condition mean min max 3 h after light 1.0875133333333333 1.01106 1.163 6 h after light 1.3879193333333333 0.901448 1.8349 9 h after light 1.291771 0.594133 1.64957 12 h after light 2.67104 2.06104 3.07849 3 h after dark 2.7737133333333333 2.30203 3.16276 6 h after dark 3.50067 2.78682 4.51762 9 h after dark 2.44604 1.00813 3.52163 12 h after dark 1.56128 1.46358 1.71418