{"year":2004,"stratum":1,"Nh":178,"nh":10}
{"year":2004,"stratum":2,"Nh":127,"nh":14}
{"year":2004,"stratum":3,"Nh":31,"nh":6}
{"year":2005,"stratum":1,"Nh":238,"nh":12}
{"year":2005,"stratum":2,"Nh":180,"nh":18}
{"year":2005,"stratum":3,"Nh":35,"nh":6}
{"year":2006,"stratum":1,"Nh":238,"nh":18}
{"year":2006,"stratum":2,"Nh":180,"nh":14}
{"year":2006,"stratum":3,"Nh":35,"nh":5}
{"year":2007,"stratum":1,"Nh":248,"nh":16}
{"year":2007,"stratum":2,"Nh":170,"nh":18}
{"year":2007,"stratum":3,"Nh":35,"nh":6}