condition	mean	min	max
4 h after light	11.616797	7.047791	13.91071
8 h after light	13.83281	10.61807	17.19122
12 h after light	12.944270666666666	9.186302	18.14431
16 h after light	17.27008	15.81792	19.70342
4 h after dark	16.206063333333333	14.11094	20.3525
8 h after dark	12.779839666666666	7.602109	16.551289999999998