tokyo june 8 reuters  japans economy grew an annualised 27 in the first quarter much higher than the initial estimate for a 16 expansion revised government data showed on thursday driven by robust business spending the revised figure for gross domestic product gdp released by the cabinet office compared with economists median forecast for a 19 gain in a reuters poll on a quarteronquarter basis gdp advanced 07 in januarymarch versus the initial 04 reading and a median forecast for a 05 rise for the full tables on the cabinet offices website httpswwwesricaogojpensnasokuhousokuhoutophtml