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Table 2 Number of observations

From: The IZA evaluation dataset survey: a scientific use file

Full sample
  Wave 1 Wave 2 Wave 3  
  Realized Willing to participate in the panel Realized Realized  
Number of interviews 17,396 15,802 8,915 5,786  
% 100 90.8 51.2 33.3  
% --- 100 56.4 36.6  
Restricted sample: Three selected entry cohorts (June and October 2007, February 2008)
  Wave 1 Interim wave Wave 2 Wave 3
  Realized Willing to participate in the panel Realized Realized Realized
Number of interviews 4,423 4,060 2,548 1,589 985
% 100 91.8 57.6 35.9 22.3
% --- 100 62.8 39.1 24.3