condition mean min max 4 h after light 3.395615 1.64258 5.14865 8 h after light 2.507935 2.15574 2.86013 12 h after light 2.596155 2.36997 2.82234 4 h after dark 3.3431033333333335 3.21089 3.53999 8 h after dark 3.874 3.05574 4.7561 12 h after dark 3.8122933333333333 3.02134 4.5364