condition	mean	min	max
0 h after light	2.3371000000000004	2.22373	2.45047
4 h after light	5.01374	4.98479	5.04269
8 h after light	18.44125	16.9772	19.9053
4 h after dark	17.60265	10.9631	24.2422
8 h after dark	9.66965	7.9508	11.3885
12 h after dark	2.73723	1.99867	3.47579