condition	mean	min	max
4 h after light	6.8931	6.46675	7.136989999999999
8 h after light	7.07046	6.4336199999999995	7.47145
12 h after light	7.138273333333333	6.887389999999999	7.26932
4 h after dark	7.112326666666667	6.82108	7.28977
8 h after dark	6.794646666666667	6.38618	7.1150899999999995
12 h after dark	6.783743333333333	6.563269999999999	6.89617