Add CHIP #85
Description
CBO includes CHIP in their definition of "income after taxes and transfers," per https://www.cbo.gov/system/files/115th-congress-2017-2018/workingpaper/53345-workingpaper.pdf.
The ASEC logs this as the PCHIP variable, per https://www.census.gov/topics/health/health-insurance/guidance/cps-asec.html.
CBO lumps in CHIP with Medicaid for their underreporting correction: https://www.cbo.gov/system/files?file=2018-07/54234-workingpaper.pdf
