fixed typo

NEED/analyse-NEED-EULF-2014-descriptives.do

@@ -71,7 +71,7 @@ if `do_2012_desc' {
 	* test values for valid - check for valid 0s for example. This only happens for gas where:
 	* 100 < gcons < 250 so included but rounded to nearest 500 = 0
 	
-	* elec always rounded to nearest 50 so min shoudl always be 100
+	* elec always rounded to nearest 50 so min should always be 100
 
 	foreach v of local vars {
 		tabstat `v', by(`v'Valid) s(n mean semean min max)