condition	mean	min	max
4 h after light	2135.87	2005.65	2322.63
8 h after light	1968.448889	1818.026667	2050.39
12 h after light	1636.7144446666666	1381.39	1950.666667
1.5 h after dark	877.1744444333333	695.93	1005.54
5.5 h after dark	854.1866666666667	747.6033333	1026.91
9.5 h after dark	1365.007778	1312.9	1392.216667