condition	mean	min	max
0 h after light	21.331699999999998	20.5272	22.1362
4 h after light	9.874134999999999	8.60017	11.1481
8 h after light	7.07457	6.37634	7.7728
4 h after dark	17.29575	14.8587	19.7328
8 h after dark	18.82425	18.194	19.4545
12 h after dark	21.1022	21.0462	21.1582