=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 23-Mar-1994
data up to 1992 revised, March 1994
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 15-Jul-1994
Tadoussac           970/096 RLR(1981) is 18.5m below BM TAD 1-1967
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 04-Apr-2012
Last data received from Tadoussac was that for 1990.