condition	mean	min	max
4 h after light	46.9155415	32.084056	61.747027
8 h after light	21.9244735	19.811171	24.037776
12 h after light	15.94491	15.94491	15.94491
4 h after dark	14.2174365	12.690066	15.744807
8 h after dark	12.191574	11.669299	12.713849
12 h after dark	14.577886	14.577886	14.577886