condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0283248 0.0 0.0849744 3 h after dark 0.060363433333333334 0.0 0.0938001 6 h after dark 0.24146486666666667 0.0745196 0.449493 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0