condition mean min max 3 h after light 0.940634 0.787312 1.01751 6 h after light 1.47133 1.38003 1.55222 9 h after light 1.76522 1.74186 1.79148 12 h after light 1.5792350000000002 1.1672 2.37739 3 h after dark 1.83524 1.73662 2.01981 6 h after dark 1.83126 1.5349 2.16401 9 h after dark 1.4616823333333333 0.796977 2.05934 12 h after dark 1.0567735 0.766287 1.34726