Among all penalty minutes picked up by Ak Bars Kazan in the 1999-2000 season, identify the percentage picked up by Yevgeni Muratov.
penalty minutes refers to PIM; Ak Bars Kazan refers to TEAM = 'Ak Bars Kazan'; percentage = MULTIPLY(DIVIDE(SUM(PIM WHERE PlayerName = 'Yevgeni Muratov'), SUM(PIM)), 100.0); 1999-2000 season refers to SEASON = '1999-2000';
SELECT CAST(SUM(CASE WHEN T2.PlayerName = 'Yevgeni Muratov' THEN T1.PIM ELSE 0 END) AS REAL) * 100 / SUM(T1.PIM) FROM SeasonStatus AS T1 INNER JOIN PlayerInfo AS T2 ON T1.ELITEID = T2.ELITEID WHERE T1.SEASON = '1999-2000' AND T1.TEAM = 'Ak Bars Kazan'