qrp_report

Merge pull request #94 in AD/qrp_report from DEV-16740 to staging

* commit '12ff1f9861d20d2e23af778ecdb1423b16902df6':
  DEV-16740 NaN and . for stat variable logic
  DEV-16740 NaN change
  DEV-16740 pct_tot_char correction
  DEV-16740 pct_tot_char correction
  DEV-16740 end added
  DEV-16740 updated stat and pct o.o%
  DEV-16740 logic change for stat
  DEV-16740 pct = . or NaN
  DEV-16740 revised end do loop
  DEV-16740 revised missing values
  DEV-16740 changed NaN and epi = 1 conditional coding
  DEV-16740 missing values
  DEV-16740: removed numeric var formats
  DEV-16740: updated comment