always 0.5 2010-12-31 always 0.5 2010-12-11 always 0.5 2010-12-11 always 0.5 2010-12-11 always 0.5 2010-12-31 always 0.5 2010-12-31 always 0.5 2010-12-31 always 0.5 2010-12-11 always 0.5 2010-12-11 monthly 0.5 2010-12-11 always 0.5 2010-12-11 always 0.5 2010-12-11 always 0.5 2010-12-11 always 0.5 2010-12-30 always 0.5 2010-12-11 always 0.5 2010-12-11 always 0.5 2010-12-11 always 0.5 2010-12-11 always 0.5 2010-12-30 always 0.5 2010-12-11 always 0.5 2010-12-11 always 0.5 2010-12-11