condition	mean	min	max
0 h after light	7.392825	6.35468	8.43097
4 h after light	12.45925	10.1358	14.7827
8 h after light	16.48585	11.0065	21.9652
4 h after dark	21.4286	18.2652	24.592
8 h after dark	20.22855	18.8364	21.6207
12 h after dark	10.49254	3.38038	17.6047