demdata: Demographic data

#' Standard errors for estimates of prevalence of obesity in New Zealand.
#' 
#' The standard errors were calculated from confidence intervals in
#' reports on the New Zealand Health Survey, 1997, 2003, 2007, 2012, 2013.
#' 
#' @format An matrix with age, in 10-year age groups, by time.  The time
#' dimension includes years in which there was no survey.
#' 
#' @source Calculated from reports on the New Zealand Ministry of Health website.
#'
#' @seealso Estimates are in \code{\link{nz.obesity.mean}}
"nz.obesity.se"