condition	mean	min	max
0 h after light	17.584200000000003	17.4049	17.7635
4 h after light	7.234535	6.74767	7.7214
8 h after light	10.086195	9.87509	10.2973
4 h after dark	18.3977	16.0327	20.7627
8 h after dark	10.303315	8.76953	11.8371
12 h after dark	12.33635	11.4458	13.2269