condition mean min max 4 h after light 1.0106245 0.904419 1.11683 8 h after light 0.7019235 0.687189 0.716658 12 h after light 0.6958925 0.667988 0.723797 4 h after dark 1.4639066666666667 1.25405 1.68375 8 h after dark 1.027175 0.88021 1.22365 12 h after dark 0.6879586666666666 0.242209 0.959177