The increased government grant to first home buyers may be drawing more such customers into the home loan market, though the overall level of demand for loans is pretty static.The Australian Finance Group's "mortgage index" (or, a measure of its own new business levels) for the month of November shows that first home buyers accounted for 22 per cent of loans during the month, up from 16 per cent the month before and from around 11 per cent during the first half of the year.There was no overall increase in demand for loans, though; AFG originated 7003 loans in November, the same as in October. The aggregate value was similar at $2.4 billion.The average size of an AFG loan eased to $345,000 from $353,000, while the average loan to valuation ratio increased to 72 per cent from 69 per cent a month before a mean LVR around 65 per cent for most of the year. This trend might indicate that lenders are adopting more conservative valuations.