condition	mean	min	max
0 h after light	19.79305	19.4714	20.1147
4 h after light	18.7331	18.0596	19.4066
8 h after light	21.23225	18.9333	23.5312
4 h after dark	29.36395	26.6269	32.101
8 h after dark	23.4754	22.7778	24.173
12 h after dark	20.2295	19.6272	20.8318