condition mean min max 2 h after light 1.4355416666666667 1.03938 1.94301 6 h after light 0.929537 0.556972 1.17655 10 h after light 0.482095 0.191245 0.966765 14 h after light 0.7697353333333333 0.433909 1.12443 18 h after light 0.790407 0.625708 0.90976 2 h after dark 0.9164131666666666 0.616074 1.52339