condition mean min max 4 h after light 3.804002 3.6788410000000002 3.9990989999999997 8 h after light 2.6730343333333333 1.7431 3.255034 12 h after light 1.840341 1.578595 2.016778 16 h after light 3.6836003333333336 3.3638550000000005 4.198539 4 h after dark 3.0925356666666666 2.815012 3.5169269999999995 8 h after dark 1.9746810000000001 1.685143 2.188682