check value increase continuously

hi

please help me to solve this.

I have some data like this(SAY IN ROW 1 & 2)

A B C D E F G
JOHN 0 14 16 28 29 32
MARY 5 8 3 11 16 18

Now I want to check whether the values are increasing continuously

for John it should indicate "Yes" and for Mary it should be "No"
because there is a drop in D2 cell

The formula should indicate "Yes" or "No" in the row of the particular person.