condition	mean	min	max
4 h after light	37.479	31.6033	43.3547
8 h after light	19.3876	19.2123	19.5629
12 h after light	23.45785	22.7168	24.1989
4 h after dark	12.60975	11.3368	13.8827
8 h after dark	12.48573	9.93196	15.0395
12 h after dark	16.20955	15.4226	16.9965