condition	mean	min	max
4 h after light	21.233	20.492	21.974
8 h after light	17.7348	16.4736	18.996
12 h after light	23.4055	23.0375	23.7735
4 h after dark	24.0905	23.3815	24.7995
8 h after dark	28.962699999999998	27.615	30.3104
12 h after dark	26.56155	24.8217	28.3014