prds_hosp10_yr2010   obs:         2,321  794924
prds_hosp10_yr2011   obs:         6,150  2194876
prds_hosp10_yr2012   obs:         6,223  2305713
prds_hosp10_yr2013   obs:         6,243  2295018
prds_hosp10_yr2014   obs:         6,234  2340998
prds_hosp10_yr2015   obs:         3,767  1320089
prds_hosp10_yr2016   obs:            26	 6728