condition mean min max 4 h after light 0.0044993 0.0 0.0089986 8 h after light 0.00729065 0.0 0.0145813 12 h after light 0.031072799999999998 0.0267126 0.035433 4 h after dark 0.02735195 0.0157904 0.0389135 8 h after dark 0.033048049999999995 0.0231947 0.0429014 12 h after dark 0.0282898 0.0258623 0.0307173