condition mean min max 4 h after light 8.229735 6.39717 10.0623 8 h after light 1.598335 1.56215 1.63452 12 h after light 1.060375 1.01356 1.10719 4 h after dark 1.546335 1.26876 1.82391 8 h after dark 1.8906450000000001 1.71051 2.07078 12 h after dark 3.424445 2.93092 3.91797