condition	mean	min	max
4 h after light	8.761531999999999	8.733635	8.789429
8 h after light	8.840949	8.733635	8.948263
12 h after light	8.538783	7.984319	9.093247
4 h after dark	8.4099045	8.086174	8.733635
8 h after dark	8.8429135	8.733635	8.952192
12 h after dark	7.758103	7.758103	7.758103