Each year attendance and interest in the festival has risen.

If short rates fall, the interest paid on the residual bonds will rise.

In the last 12 months, short interest has risen by 40 percent.

"Short interest" on the Big Board rose 3.4 percent in the recent month.

During the month, the short interest rose 453,486 shares, to 3.8 million.

Short interest has risen by more than a third over the last year.

Short interest on the stock rose 7 percent, to 4.3 million, in the latest reporting period.

By 2007, with the oil price well north of $100, interest in algae had risen again.

For people aged 30 and above, interest in science stayed the same or rose during the decade.

However, off late interest in education is rising among the middle class Muslim population.