condition mean min max 4 h after light 161.080717 98.693604 223.46783 8 h after light 108.747249 103.081429 114.413069 12 h after light 144.503094 135.897757 153.108431 4 h after dark 49.147450000000006 31.408341 66.886559 8 h after dark 43.7872495 34.859374 52.715125 12 h after dark 152.53816 152.53816 152.53816