A social researcher is interested in studying the relationship between religious affiliation and years of education. Here is the data she is working with:

Catholics	Protestants	Jews	Muslims
10	10	12	12
16	10	12	12
16	16	16	10
12	13	16	12
12	13	18	13
13	12	13	16
14	12	13	13
12	18	11	13
12	11	12	11
12	12	14	12

Calculate the total sum of squares.