condition	mean	min	max
4 h after light	20.735343	17.669405	23.801281
8 h after light	20.8738615	18.745026	23.002697
12 h after light	16.7998085	14.794045	18.805572
4 h after dark	22.3424275	21.967103	22.717752
8 h after dark	26.4731435	21.549785	31.396502
12 h after dark	21.549785	21.549785	21.549785