condition mean min max 4 h after light 0.309607 0.0 0.619214 8 h after light 0.1357145 0.0 0.271429 12 h after light 0.0 0.0 0.0 4 h after dark 0.17327233333333333 0.0 0.519817 8 h after dark 0.488705 0.0 1.02714 12 h after dark 0.270376 0.0 0.488928