Newest Aggregate Data
Updated Data (v6.0), Released July 2020
- Years: 1993-2018
- 2,268 chamber years of data
- More missing data filled in
- Continued improvement in data reliability
Newest Individual Level Data
Updated Data (v6.0), Release July 2020
- Years: 1993-2016
- Observations: 24,716 state legislators
Archived Data – Aggregate
Updated Data (v5.0), Released May 2018
- Years: 1993-2016
- 2,025 chamber years of data
Updated Data (v4.0), Released June 2015
- Years: 1993-2014
- 1,816 chamber years of data
Updated Data (v3.0), Released July 2014
- Years: 1993-2013
- 1,695 chamber years of data
Updated Data (v2.0), Released May 2013
- Years: 1993-2011
- 1,353 chamber years of data
- Nebraska party data enabled thanks to Seth Masket
- Data is considerably cleaner and less noisy
APSR Article Data (v1.0) Released January 2012
- Years: 1993-2011
- 1,213 chamber years of data
- Replication data for APSR article
Archived Data – Individual
Updated Data (v5.0), Release May 2018
- Years: 1993-2016
- Observations: 22,868 state legislators
Updated Data, Released June 2015
- Years: 1993-2014
- Observations: 20,783 state legislators
Updated Data, Released July 2014
- Years: 1993-2013
- Observations: 20,198 state legislators
Updated Data, Released May 2013
- Years: 1993-2011
- Observations: 18,189 state legislators
