condition mean min max 0 h after light 0.813395 0.58928 1.03751 4 h after light 3.8504 2.13856 5.56224 8 h after light 2.988975 2.96874 3.00921 4 h after dark 2.153655 1.63514 2.67217 8 h after dark 1.51727 1.51583 1.51871 12 h after dark 1.5992350000000002 0.93788 2.26059