Numeric Ranges for Data Elements

	     Size		    Range	      Significant digits

	 1 byte integer		  -128 to 127
	 1 byte unsigned	     0 to 255
	 2 byte integer        -32,768 to 32,767
	 2 byte unsigned	     0 to 65535
	 4 byte integer -2,147,483,648 to 2,147,483,647
	 4 byte unsigned	     0 to 4,294,967,295
	 8 byte integer       -9x10e18 to 9x10e18
	 4 byte real	    3.4x10e-38 to 3.37x10e38	      7
	 8 byte real	   1.7x10e-308 to 1.67x10e308	     15
	10 byte real	  3.4x10e-4932 to 1.1x10e4932	     19
	10 byte packed dec     -99..99 to 99..99