condition mean min max 0 h after light 0.3428555 0.161124 0.524587 4 h after light 0.4441695 0.436863 0.451476 8 h after light 0.263644 0.199259 0.328029 4 h after dark 0.37684599999999996 0.237366 0.516326 8 h after dark 0.737438 0.634748 0.840128 12 h after dark 0.4761505 0.362042 0.590259