condition	mean	min	max
4 h after light	15.74615	12.6951	18.7972
8 h after light	18.917900000000003	18.1624	19.6734
12 h after light	20.3913	19.7484	21.0342
4 h after dark	30.095266666666667	27.2222	31.5923
8 h after dark	28.615833333333335	27.8249	29.3234
12 h after dark	19.488366666666668	17.4294	21.4099