condition mean min max 0 h after light 2.1267375 0.647065 3.60641 2 h after light 0.0 0.0 0.0 4 h after light 0.61073 0.0 1.22146 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.61881 0.0 1.23762 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 1.2586650000000001 1.23411 1.28322