ummm
This is from a BBC report. Admittedly, it's from 2011, but I've got little reason to believe much has changed.
I wonder whether (despite what others may imply), that a major reason why the NHC continues, is because it's such a massive cash cow!
Anyway, this is what the report states:
As a worldwide event, only Rio de Janeiro's carnival in Brazil ranks ahead of Notting Hill in size.
According to the London Development Agency, it contributes up to £93m a year to the city's economy and supports the equivalent of 3,000 full-time jobs.
Young volunteers are keen to help assemble the carnival costumes
Visitors spend tens of millions of pounds buying food and drink from the carnival's 250 licensed trading sites, while music producers, clothing designers, merchandisers and security companies are among others who benefit.
The carnival also attracts an estimated 90,000 foreign tourists, who helped boost last year's attendance to more than a million.