condition mean min max 4 h after light 3.6474900000000003 3.08532 4.20966 8 h after light 3.6972050000000003 3.44942 3.94499 12 h after light 2.999435 2.44873 3.55014 4 h after dark 3.686055 3.44165 3.93046 8 h after dark 3.91034 3.62833 4.19235 12 h after dark 3.289165 2.69437 3.88396