The midfielder has expressed his delight with the Catalans\' good results at Camp Nou, but added that they cannot afford to slip up again with Real Madrid clear atop La Liga.Barcelona midfielder Andres Iniesta has voiced his satisfaction with his side\'s performances in home games in the 2011-12 campaign in the wake of Tuesday\'s 4-0 La Liga win over Rayo Vallecano at Camp Nou.The Catalans have won seven out of their eight home league matches in the league so far, scoring 34 times without conceding once, and Iniesta is very pleased with Barcelona\'s form in their own stadium. \"They are significant numbers. We’re on good form at Camp Nou. However, it’s a bit more difficult playing away, although we’re working to improve the situation,\" Iniesta said in an interview with Barca TV. The Spain international then went on to stress that Barcelona cannot afford to slip up any more if they hope to to keep the pressure on Real Madrid, who lead the title race by three points with a game in hand. \"There is very little margin for error in La Liga,\" Iniesta admitted. \"We’ll play against Madrid soon. Each year is demanding and you always have to fight to win all the titles when you\'re playing for a team like Barca. \"The team is doing a good job, but we need to do even better. The table-toppers\' performances demand it.\" Barcelona currently sit second in La Liga with 31 points from 14 matches.