Answer the following question regarding the table below.

90 91 93 94 97 97 99
90 92 93 95 97 98 99
90 92 94 95 97 98 99
91 92 94 95 97 98
91 93 94 97 97 98
Which number appears most frequently?

90
94
97
98
What do you think the answer is?