Svejk,
The actual figures were posted by mushroom25 at post No.3. These figures are for the 12 months up to September 2014 (ie, they include 3 months prior to the restrictions on working being lifted).
// Passenger Survey (IPS)2 are for the year ending September 2014, when an estimated 37,000 Bulgarian and Romanian citizens immigrated to the UK. This is a statistically significant increase from 24,000 for the year ending September 2013. //
2013 - 24,000
2014 - 37,000
An increase from when the 'floodgates' were opened of 15,000.