"GRDC-Code" "Month" "MinQ" "MaxQ" "MeanQ" 4203900 "01" 92.387001 235.000000 163.483002 4203900 "02" 82.690002 185.389999 145.802994 4203900 "03" 73.387001 185.250000 134.802002 4203900 "04" 72.900002 211.729996 132.858002 4203900 "05" 107.769997 234.289993 160.231995 4203900 "06" 204.100006 605.599976 306.121002 4203900 "07" 361.709991 755.510010 557.806030 4203900 "08" 461.929993 797.030029 651.776978 4203900 "09" 428.730011 747.830017 597.554016 4203900 "10" 277.450012 649.000000 456.028015 4203900 "11" 185.529999 426.760010 292.432007 4203900 "12" 121.830002 299.290009 198.203003