http://spreadsheets.google.com/feeds/list/o03614325011180739288.2192955540615712279/oda/public/basic/cre1l2008-09-10T22:20:10.889Znov2006: 15.31, dec2006: 14.76, jan2007: 16.09, feb2007: 13.89, mar2007: 19.92, apr2007: 17.1, may2007: 14.32, jun2007: 12.71, jul2007: 13.74, aug2007: 13.02, sep2007: 17.74, oct2007: 15.09, nov2007: 20.43, dec2007: 21.47, jan2008: 25.5, feb2008: 20.77, mar2008: 20.94, apr2008: 22.46, may2008: 17.81, jun2007_2: 17.56, jul2008: 17.52, aug2008: 17.23