condition	mean	min	max
4 h after light	21.663800000000002	21.3277	21.9999
8 h after light	16.1404	15.3398	16.941
12 h after light	11.47935	10.1957	12.763
4 h after dark	17.7803	15.5866	20.0602
8 h after dark	13.828566666666667	12.6069	14.4894
12 h after dark	20.6637	18.5289	23.7063