FRANCOFORTE, 22 maggio (Reuters) - The European Central Bank bought 11.628 billion euros ($10.34 billion) of public sector assets last week as part of its quantitative easing programme, below the 12.037 billion euros it purchased a week earlier, it said on Monday. The following table details the ECB’s purchases in the Public Sector Purchase Programme (PSPP), Asset Backed Securities Programme (ABS), Corporate Sector Purchase Programme (CSPP) and Covered Bond Purchase Programme 3 over the past eight weeks. The total represents the purchases in the four purchase programmes. All figures are in billions of euros. Reference Date PSPP ABS Covered bonds CSPP Total May 19 11.628 0.034 0.621 2.003 14.286 May 12 12.037 0.085 1.161 1.515 14.798 May 5 10.767 -0.007 1.065 1.152 12.977 Apr 28 14.079 -0.600 0.260 1.218 14.957 Apr 21 11.069 -0.047 0.597 1.482 13.101 Apr 14 12.482 0.076 0.787 1.692 15.037 Apr 7 16.681 0.112 0.284 2.415 19.492 Mar 31 7.767 0.191 -0.731 1.674 8.901 Mar 24 14.432 0.123 0.505 1.538 16.598 ($1 = 1.1246 euros) For more detail on the ECB's asset purchases, please click: here