Construct and interpret a $c$ chart using the following data:

$\backslash$table$[[$Sample$,$Defects$],[1,6],[2,5],[3,7],[4,6],[5,8],[6,5],[7,6],[8,7],[9,6],[10,8],[11,7],[12,6],[13,7],[14,8],[15,7],[16,6],[17,5],[18,2],[19,1],[20,0],[21,12],[22,4],[23,6],[24,7],[25,8],[,]]$