There is a small possibility that the lower numbers (especially those from 49000s-51000s) will be assigned to upcoming films so you can complete some of the series on your list. This year, the lowest is 50335, which is taken by Bad Boys For Life. While in 2003, the lowest is 35329, which is taken by Hollywood North. 50335 is in the 50000 series, which commonly runs from 2016-17 (a gap of 3-4 years between its run and its actual issuance), and 35329 is in the 35000 series, which runs from 1997-98 (a gap of 5-6 years between its run and its actual issuance). As we know, the issuance of certificate numbers is not in proper sequence.