list(N=23, 
     C=c(15.9, 25.7, 28.5, 23.7, 25.0, 33.3, 28.2, 19.7, 17.5, 19.3, 21.6, 23.1,
         22.5, 22.5, 23.6, 29.1, 14.4, 13.2, 28.4, 34.6, 37.5, 25.9, 25.3),
     I=c(61.89, 78.98, 55.59, 44.61, 56.89, 38.27, 33.84, 36.13, 41.95, 36.63, 
         36.33, 38.82, 34.32, 37.64, 34.01, 32.16, 26.88, 36.61, 30.07, 30.75, 
         23.36, 22.36, 21.91))