=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 14-Oct-2010
West Tuas is a completely different station to Tuas (West Jurong). Dataset
begins Jan 1997.Made RLR in 2010. RLR year is 2007. RLR (2007) is 10.3m below
BM MPA 3.
RLR factor is 5.358.