condition	mean	min	max
4 h after light	19.8661	16.4032	23.329
8 h after light	16.31225	16.2429	16.3816
12 h after light	17.195	16.1718	18.2182
4 h after dark	17.7053	17.01	18.8337
8 h after dark	20.393933333333333	20.0654	20.7926
12 h after dark	20.793633333333332	19.3011	23.1616