Collect the frequency of each code for one week in the clinic. Observations are shown here :

Day1	Day2	Day3	Day4	Day5	Day6	Day7
BLUE	BLUE	BLUE	BLUE	PURPLE	BLUE	BLUE
BLUE	BLUE	BLUE	BLUE	WHITE	BLUE	BLUE
BLUE	PURPLE	PURPLE	WHITE	WHITE	WHITE	PURPLE
WHITE	PINK	PINK	WHITE	BLUE	BLUE	PURPLE
WHITE	BLUE	ORANGE	WHITE	BLUE	BLUE	WHITE
PURPLE	BLUE	WHITE	WHITE	ORANGE
WHITE	BLUE	BLUE	PURPLE	WHITE
WHITE	WHITE	BLUE	PURPLE	WHITE
PURPLE	WHITE	BLUE	PURPLE	PURPLE
BLUE	WHITE	BLUE	PURPLE	BLUE
WHITE	WHITE		PINK	BLUE
BLUE	PINK		SILVER	BLUE
	PINK		WHITE	BLUE
	BLUE			BLUE
	BLUE