Oil certain to hit $200 per barrel

The Big Mac index, the Pants-per-Share index and the Hemline indicator. There are plenty of unusual ways of reading the economic runes.

To this list, we'd like to add the Brockley Central Window Rattle Index.

For if we ever doubted Goldman Sachs' prediction that Oil prices could hit $200 a barrel, that was put to rest by the number of times a day our windows are rattled by boy racers driving pointlessly round and round the streets of Brockley, with their sub-woofers juiced to military levels.

Soaring prices don't seem to have affected the frequency of rattle, which suggests there is still plenty of room for prices to rise.