Among the 100 natural numbers 1-100, how many can be divisible by 3?

Among the 100 natural numbers 1-100, how many can be divisible by 3?

3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 63 66 69 72 75 78 81 84 87 90 93 96 99
Total 33