condition mean min max 3 h after light 0.26962 0.0 0.80886 6 h after light 0.0 0.0 0.0 9 h after light 0.264904 0.0 0.794712 12 h after light 0.0 0.0 0.0 3 h after dark 1.23173 0.0 2.22891 6 h after dark 0.368169 0.0 0.582445 9 h after dark 0.7491533333333332 0.0 2.24746 12 h after dark 0.0 0.0 0.0