condition mean min max 4 h after light 2.90039 2.38672 3.41406 8 h after light 3.129425 3.05944 3.19941 12 h after light 2.873105 2.34238 3.40383 4 h after dark 2.366885 2.19219 2.54158 8 h after dark 1.9148900000000002 1.71112 2.11866 12 h after dark 3.312265 3.1592 3.46533