Data frame:d

59 observations and 8 variables, maximum # NAs:0  
NameLabelsUnitsClassStorage
yearYearintegerinteger
monthMonthintegerinteger
acesAcute Coronary Episodes per Monthintegerinteger
timeTime Since Start of Studymonthsintegerinteger
smokbanSmoking Banintegerinteger
popSicily Population in 10000snumericdouble
stdpopAge Standardized Populationnumericdouble
rateStandardized Ratenumericdouble