prds_hosp10_yr2010   obs:         2,321                          
prds_hosp10_yr2011   obs:         6,150                          
prds_hosp10_yr2012   obs:         6,223                          
prds_hosp10_yr2013   obs:         6,243                          
prds_hosp10_yr2014   obs:         6,234                          
prds_hosp10_yr2015   obs:         3,767                          
prds_hosp10_yr2016   obs:            26