Please help parse Json result : Please help me get JSON result - "col1":"64.7020" to $result

https://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20csv%20where%20url%3D%22http%3A%2F%2Ffinance.yahoo.com%2Fd%2Fquotes.csv%3Fe%3D.csv%26f%3Dc4l1%26s%3DUSDRUB%3DX%22%3B&format=json&diagnostics=true&callback=

        
    {"query":{"count":1,"created":"2016-08-28T09:50:07Z","lang":"ru-RU","diagnostics":{"publiclyCallable":"true","url":{"execution-start-time":"1","execution-stop-time":"2","execution-time":"1","content":"http://finance.yahoo.com/d/quotes.csv?e=.csv&f=c4l1&s=USDRUB=X"},"user-time":"2","service-time":"1","build-version":"0.2.48"},"results":{"row":{"col0":"RUB","col1":"64.7020"}}}}



    $tick=file_get_contents('https://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20csv%20where%20url%3D%22http%3A%2F%2Ffinance.yahoo.com%2Fd%2Fquotes.csv%3Fe%3D.csv%26f%3Dc4l1%26s%3DUSDRUB%3DX%22%3B&format=json&diagnostics=true&callback='); 
    
    
    $url = $tick;
    $json = file_get_contents($url);
    $data = json_decode($json, TRUE);
    
    $result ??
    echo col1 ???????