Sept 15 (Reuters) - The Czech Republic's gross central government debt rose to 728.9 billion crowns ($32.61 billion) at the end of June, from 698.2 billion at the end of March, the Finance Ministry said on Friday. The table details the structure of state debt at the end of the period. The headline number had previously been released on July 10. JUNE 06 MAR 06 DEC 05 JUNE 05 GOVERNMENT DEBT (CZK bln) total outstanding 728.9 698.2 691.2 643.6 internal 611.4 582.5 581.8 537.8 treasury bonds 532.1 495.7 487.5 428.8 treasury bills 79.3 86.8 94.2 109.0 external 117.5 115.6 109.4 105.9 debt guaranteed by govt 444.1 444.9 468.1 523.8 NOTE. The table is prepared under IMF methodology. Data show levels at the end of the period mentioned. Figures are rounded and include central government liabilities in bonds, loans and other instruments but not the debt or liabilities from off-budget funds, social insurance funds or other government or quasi-government institutions. (Reporting by Mirka Krufova in Prague) ((For past economic data and analysts' forecasts, double click on <CZ/ECON01>)) ((prague.newsroom@reuters.com; Reuters Messaging: mirka.krufova.reuters.com@reuters.net; +420 224 190 477)) ($1=22.35 Czech Crown) Keywords: ECONOMY CZECH DEBT TABLE