Giving the latest data on the 30-year fixed-rate mortgages front, Freddie Mac said on Thursday that though the this week's rates have fallen slightly from last week, they still managed to remain marginally ahead of record lowest posted for the April 2 week.

Speaking in terms of specific figures for this week, the 30-year fixed-rate mortgages averaged 4.8 percent; marking a fall from last week's 4.82 percent, and a nearly 1.25 percent fall from the same period rates last year.

However, though the average 15-year fixed-rate mortgage remained unchanged from last week's 4.48 percent, the average rate on a one year adjustable-rate mortgage has now dropped to 4.82 percent, from 4.91 percent last week.

With the mortgage rates being low, the refinancing activity has seen an increase. After having fallen radically in winter, the rates slithered again after the Federal Reserve last month announcement of buying $1.2 trillion in mortgage-backed securities and $300 billion in long-term government debt.

Elaborating further on the mortgages scene this week, the Freddie Mac chief economist Frank Nothaft said: "Although long-term rates eased slightly this week, ARM rates remain elevated relative to those fixed-rate mortgages. Interest rates for one year ARMs exceeded 30 year fixed-rate mortgages…the first time this has happened since Freddie Mac began collecting data for ARMs in January 1984."