condition	mean	min	max
4 h after light	17.2982	17.2675	17.3289
8 h after light	18.497549999999997	18.2247	18.7704
12 h after light	17.95645	17.1918	18.7211
4 h after dark	22.5261	19.8782	25.174
8 h after dark	23.6837	23.3726	23.9948
12 h after dark	22.1946	22.1006	22.2886