condition	mean	min	max
0 h after light	17.26435	15.2181	19.3106
4 h after light	11.73746	9.00252	14.4724
8 h after light	12.1898	10.3274	14.0522
4 h after dark	15.974	15.9425	16.0055
8 h after dark	16.0587	14.9879	17.1295
12 h after dark	16.47465	11.1449	21.8044