I seem to recall that after the new airport was built, up till sometime in the mid 1990's night VFR ops were not permitted at all. Then the current procedures were developed and published in ERSA.
FLIGHT PROCEDURES
1. Right Hand circuits RQ when OPR on RWY 02 and RWY 29.
2. RWY 02/20- Night TKOF and LDG are not permitted.
3. Night VFR OPS approved under the FLW mandatory conditions:
WX COND at the time must meet the night VMC requirements. Circuit ALT must not be less than 2,050FT. OPS under night VFR COND are only permitted on RWY 11/29. Circling and circuits must be kept WI 3NM of either THR. DEP ACFT must FLW the circuit direction and remain WI 3NM until reaching LSALT for the first TR. DEP ACFT must use full length of the RWY- INT DEP are not permitted for night OPS. ARR ACFT must MNTN LSALT until positively established WI 3NM and then descend to not less than 2,050FT until turning base for LDG. This base position must be kept WI 3NM of the THR.
4. RWY 11/29- IFR CAT ACFT LDG HN are not to descend BLW 1,950FT unless established on AT-VASIS, or on final approach.