Ipums provides the 5% and IBGE says the original data is a 25% sample. Unfortunately, IBGE does not provide any way for people outside Brazil to access the data.
I understand the 25% must be very heavy for IPUMS to provide and it wouldn’t make a difference for most users, but I’m currently needing it because I’m looking at some variables at the municipality level and observations get scarce. Is there any way that IPUMS can provide these data? Or do you know some other source that might?