  We present an initial analysis of Radio Frequency Interference (RFI) flagging
statistics from archived Australian SKA Pathfinder (ASKAP) observations for the
'Survey and Monitoring of ASKAP's RFI environment and Trends' (SMART) project.
The survey component covers ASKAP's full 700 MHz to 1800 MHz frequency range,
including bands not typically used due to severe RFI. In addition to this
dedicated survey, we routinely archive and analyse flagging statistics for all
scientific observations to monitor the observatory's RFI environment in near
real-time. We use the telescope itself as a very sensitive RFI monitor and
directly assess the fraction of scientific observations impacted by RFI. To
this end, flag tables are now automatically ingested and aggregated as part of
routine ASKAP operations for all science observations, as a function of
frequency and time. The data presented in this paper come from processing all
archived data for several ASKAP Survey Science Projects (SSPs). We found that
the average amount of flagging due to RFI across the routinely-used 'clean'
continuum science bands is 3%. The 'clean' mid band from 1293 MHz to 1437 MHz
(excluding the 144 MHz below 1293 MHz impacted by radionavigation-satellites
which is discarded before processing) is the least affected by RFI, followed by
the 'clean' low band from 742 MHz to 1085 MHz. ASKAP SSPs lose most of their
data to the mobile service in the low band, aeronautical service in the mid
band and satellite navigation service in the 1510 MHz to 1797 MHz high band. We
also show that for some of these services, the percentage of discarded data has
been increasing year-on-year. SMART provides a unique opportunity to study
ASKAP's changing RFI environment and informing the implementation of a suite of
RFI mitigation techniques.
