condition	mean	min	max
4 h after light	13.98095	13.2826	14.6793
8 h after light	21.5614	20.6744	22.4484
12 h after light	19.5579	18.4012	20.7146
4 h after dark	24.6519	23.1228	26.181
8 h after dark	18.40005	17.2849	19.5152
12 h after dark	16.29025	15.9673	16.6132