* Nikkei 225 Stock Average: +48.07 (+0.3%) to 18,211.68; nearly 3 months since its last 5-day winning streak; 2/26 YTD and multi-year high: 18,215.35 * Nikkei 225 futures Osaka: +60 (+0.3%) to 18,240 * TOPIX: +3.23 (+0.2%) to 1,783.72; Advancers 820 x decliners 743 (unchanged 169); New highs 89 x new lows 18 * Jasdaq: [...]