condition	mean	min	max
4 h after light	21572.49222	20949.97333	22152.87333
8 h after light	25721.192776666667	19948.37	28909.51333
12 h after light	31226.267780000002	26569.14667	34920.11667
1.5 h after dark	31933.10111	26899.31333	34533.58667
5.5 h after dark	29432.15	25284.74333	36476.68
9.5 h after dark	24157.603333333333	21531.14	25743.62667