*Estonia Mar Retail Sales Rise 1.8% On Year Vs. 4.4% In February

*Australian Dollar Rises To Near 2-week High Of 1.0785 Against NZ Dollar

*Australian Dollar Edges Up To 91.68 Against Yen

*Australian Dollar Advances To 4-day High Of 1.7702 Against Euro

*Australian Dollar Climbs To Near 4-week High Of 0.8912 Against Canadian Dollar