condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.091054 0.0 0.182108 12 h after light 0.025051200000000003 0.0235751 0.0265273 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0