condition mean min max 0 h after light 0.744978 0.372986 1.11697 4 h after light 0.189684 0.0 0.379368 8 h after light 0.7526775 0.368355 1.137 4 h after dark 1.09917 1.097 1.10134 8 h after dark 0.551581 0.369781 0.733381 12 h after dark 0.367772 0.363722 0.371822