condition mean min max 4 h after light 2.0925633333333336 1.21454 2.76942 8 h after light 0.921317 0.266991 1.41988 12 h after light 0.6801226666666667 0.0 1.2466 4 h after dark 0.718686 0.331144 1.04386 8 h after dark 2.0583366666666665 1.73788 2.61101 12 h after dark 4.25667 3.07192 4.89382