READ ME This text describes the data presented in the paper: ======================== Introductory information ======================== Files included in the data deposit (include a short description of what data are contained): 1) 2) 3) Explain the relationship between multiple data sets, if required: Key words used to describe the data: ========================== Methodological information ========================== A brief method description – what the data is, how and why it was collected or created, and how it was processed: Instruments, hardware and software used: Date(s) of data collection: Geographic coverage of data: Data validation (how was the data checked, proofed and cleaned): Overview of secondary data, if used: ========================= Data-specific information ========================= Definitions of names, labels, acronyms or specialist terminology uses for variables, records and their values: Explanation of weighting and grossing variables: Outline any missing data: ======= Contact ======= Please contact rdm@ncl.ac.uk for further information