condition	mean	min	max
4 h after light	18.74845	16.9844	20.5125
8 h after light	17.36905	17.3151	17.423
12 h after light	20.0166	17.6066	22.4266
4 h after dark	22.02665	20.5963	23.457
8 h after dark	23.18635	22.6136	23.7591
12 h after dark	23.265349999999998	23.2421	23.2886