condition	mean	min	max
4 h after light	7.76382	7.66528	7.92575
8 h after light	7.801096666666666	7.5391699999999995	8.1334
12 h after light	8.215296666666667	8.0174	8.51882
4 h after dark	7.779503333333333	7.41282	8.27334
8 h after dark	7.5331600000000005	7.25312	7.822260000000001
12 h after dark	7.489859999999999	7.339589999999999	7.75155