condition mean min max 0 h after light 0.0720835 0.0 0.144167 4 h after light 0.7202145 0.587583 0.852846 8 h after light 1.88512 1.56894 2.2013 4 h after dark 0.99253 0.71075 1.27431 8 h after dark 0.7821235 0.286367 1.27788 12 h after dark 0.0 0.0 0.0