Number of service requests to NYC’s 311 from 2004 to 2016: 24.54 million
Looks like @NYC311 didn’t collect borough information for a significant number of service requests. Then again, it’s easy enough to derive that if there is adequate address information. Note to self: is there a difference between “Unspecified” and “NA”?
Borough
SRs
Unspecified
3,805,628
Brooklyn
1,191,612
Bronx
1,075,857
NA
835,384
Manhattan
707,999
Queens
434,437
Staten Island
59,442

311 data from NYC Open Data downloaded at various times. As of Feb 19, 2017, 24.5 million rows, 52 variables till 2009, 53 variables from 2010. Parsed using R v3.3.1 in RStudio v1.0.136