condition	mean	min	max
0 h after light	8.69313	7.73488	9.65138
4 h after light	29.0565	26.6441	31.4689
8 h after light	49.5531	38.1942	60.912
4 h after dark	20.891	19.0327	22.7493
8 h after dark	23.87565	20.9119	26.8394
12 h after dark	12.36201	9.63842	15.0856