condition	mean	min	max
3 h after light	33.8599	28.4307	38.193
6 h after light	29.1935	23.6316	32.5208
9 h after light	25.8705	20.713	28.5762
12 h after light	20.849766666666667	18.9485	23.1785
3 h after dark	44.0873	38.6938	48.5724
6 h after dark	42.88053333333333	36.3111	48.4001
9 h after dark	36.72226666666667	35.5198	38.6955
12 h after dark	36.1963	33.7514	39.8456