condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.090938 0.0 0.181876 8 h after light 0.1877775 0.0 0.375555 4 h after dark 0.27247350000000004 0.181172 0.363775 8 h after dark 0.0908395 0.0 0.181679 12 h after dark 0.0 0.0 0.0