condition	mean	min	max
4 h after light	22.520112500000003	20.971862	24.068363
8 h after light	20.760087499999997	18.484765	23.03541
12 h after light	18.321793	15.436343	21.207243
4 h after dark	20.7402995	18.981953	22.498646
8 h after dark	21.374218	21.207243	21.541193
12 h after dark	21.879958	21.879958	21.879958