condition	mean	min	max
4 h after light	16.68239	15.538133	17.826647
8 h after light	15.775758999999999	15.00377	16.547748
12 h after light	16.458254	16.380729	16.535779
4 h after dark	19.872095	16.523099	23.221091
8 h after dark	20.962736	16.547748	25.377724
12 h after dark	14.132401	14.132401	14.132401