First we need to find Maryland. To find Maryland, we can sort the table by the first column which contains all the region names. then use the UP and DOWN arrow keys to find Maryland. Next, we will find the column "population 65 years and over" by pressing the LEFT and RIGHT arrow keys and stay in the same row. In order to hear the name of each column, either situate at each column, or adjust the information level to level 2 which will play the current column name by default when we move left or right. After finding the column, press the SPACE key to get the value, or adjust the information level to level 3 which will also read the value of the current cell.
Answer: 594609