condition	mean	min	max
4 h after light	15.508264	12.501214	18.515314
8 h after light	17.6013805	17.558043	17.644718
12 h after light	16.0969855	15.195016	16.998955
4 h after dark	17.614054	17.065481	18.162627
8 h after dark	16.9613405	15.031488	18.891193
12 h after dark	13.615643	13.615643	13.615643