The table below gives the number of United States presidents from 1789 to 2015 whose age at the time they first took office is within the interval listed.

Ages	Number
40-44	2
45-49	7
55-59	11
60-64	7
65-69	3

If a president is chosen at random from those who were 55 years old or older when they first took office, what is the probability, to the nearest percent, that the president was 65 years old or older?