condition mean min max 4 h after light 6.692159999999999 4.08634 9.81632 8 h after light 6.10827 2.13209 8.6861 12 h after light 4.871003333333333 4.00317 6.10435 4 h after dark 7.91327 4.56255 11.4206 8 h after dark 6.170793333333333 4.54075 8.62719 12 h after dark 10.075569999999999 9.40087 11.2715