condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0864465 0.0 0.172893 4 h after dark 0.0720595 0.0 0.144119 8 h after dark 0.0846955 0.0 0.169391 12 h after dark 0.0 0.0 0.0