condition	mean	min	max
4 h after light	21.26111111	18.86333333	23.76
8 h after light	21.200555553333334	14.98333333	25.315
12 h after light	29.175555556666666	25.99	31.48
1.5 h after dark	28.994444443333336	23.32	33.02
5.5 h after dark	31.099999999999998	26.27333333	33.57
9.5 h after dark	32.24444444666667	25.88666667	41.53