Pull request #862: DEV-33712: Replaced proc transpose with more efficient code
Merge in AD/qrp from DEV-33712 to staging
* commit '070303a748fcdf7f0e3fd137122d555e35208645':
DEV-33712: Added riskscore categories to keep option
DEV-33712: Addressed CR2 comments
DEV-33712: Initialized age groups to 0 instead of missing
DEV-33712: Remplaced proc transpose with more efficient code
