condition mean min max 0 h after light 13.96205 13.0513 14.8728 4 h after light 22.9708 20.802 25.1396 8 h after light 22.44995 22.0145 22.8854 4 h after dark 17.9858 16.4187 19.5529 8 h after dark 18.13565 16.8053 19.466 12 h after dark 16.0501 15.5436 16.5566