"Figure 1: The effect of a change to the weighting methodology is most greatly observed in the self-employed levels","" "Difference between cross-sectional and longitudinal estimates of employees and self-employed based on the original and modified weighting methodologies, UK, not seasonally adjusted, April to June 2012 to July to September 2019","" "","" "Notes","" "Unit","Percentage" "","" "Period","Employees modified weight","Self-employed modified weight","Employees original weight","Self-employed original weight" "Apr-Jun 2012","0.00","0.33","-0.13","1.09" "Jul-Sep 2012","-0.05","0.45","-0.78","4.83" "Oct-Dec 2012","-0.05","-0.31","-0.35","1.37" "Jan-Mar 2013","-0.10","0.32","-0.71","4.00" "Apr-Jun 2013","0.01","0.56","-0.34","2.66" "Jul-Sep 2013","-0.08","0.08","-0.39","1.95" "Oct-Dec 2013","-0.06","0.47","-0.72","4.30" "Jan-Mar 2014","-0.01","0.60","-0.75","4.74" "Apr-Jun 2014","0.04","0.21","-0.28","1.96" "Jul-Sep 2014","0.02","0.26","-0.35","2.39" "Oct-Dec 2014","-0.08","0.04","-0.75","4.10" "Jan-Mar 2015","0.00","0.12","-0.57","3.57" "Apr-Jun 2015","-0.05","0.03","-0.40","2.03" "Jul-Sep 2015","-0.05","0.24","-0.51","2.92" "Oct-Dec 2015","-0.06","-0.10","-0.65","3.30" "Jan-Mar 2016","-0.11","0.25","-0.69","3.59" "Apr-Jun 2016","0.08","0.11","-0.18","1.52" "Jul-Sep 2016","-0.14","-0.51","-0.11","-0.82" "Oct-Dec 2016","-0.02","-0.12","-0.46","2.24" "Jan-Mar 2017","0.02","-0.15","-0.51","2.90" "Apr-Jun 2017","0.07","-0.08","-0.84","5.12" "Jul-Sep 2017","-0.06","0.48","-0.66","3.92" "Oct-Dec 2017","-0.05","0.05","-0.76","4.17" "Jan-Mar 2018","-0.01","0.07","-0.34","1.87" "Apr-Jun 2018","-0.09","0.60","-0.94","5.54" "Jul-Sep 2018","-0.03","0.28","-0.88","5.42" "Oct-Dec 2018","-0.11","0.58","-1.49","8.62" "Jan-Mar 2019","0.02","0.63","-0.85","5.61" "Apr-Jun 2019","-0.08","0.60","-0.94","5.46" "Jul-Sep 2019","-0.09","-0.10","-1.12","5.69"