condition	mean	min	max
0 h after light	3.760275	3.21981	4.30074
4 h after light	6.788205	6.6982	6.87821
8 h after light	3.82691	3.14101	4.51281
4 h after dark	3.168775	3.03051	3.30704
8 h after dark	6.238495	5.68158	6.79541
12 h after dark	3.43821	2.81355	4.06287