Vybroušení dřevěné podlahy

[{"from":0,"to":3100,"value":3,"percent":7},{"from":3100,"to":6200,"value":2,"percent":4},{"from":6200,"to":9300,"value":1,"percent":2},{"from":9300,"to":12400,"value":6,"percent":13},{"from":12400,"to":15500,"value":5,"percent":11},{"from":15500,"to":18600,"value":2,"percent":4},{"from":18600,"to":21700,"value":5,"percent":11},{"from":21700,"to":24800,"value":3,"percent":7},{"from":24800,"to":27900,"value":5,"percent":11},{"from":27900,"to":31000,"value":7,"percent":16},{"from":31000,"to":34100,"value":2,"percent":4},{"from":34100,"to":37200,"value":1,"percent":2},{"from":37200,"to":40300,"value":0,"percent":0},{"from":40300,"to":43400,"value":1,"percent":2},{"from":43400,"to":46500,"value":1,"percent":2},{"from":46500,"to":49600,"value":1,"percent":2}]