_id datetime   dev_chid   val_raw   val_description   val_type   dev_site   dev_tag   val_cal   val_offset   dev_error   dev_type   dev_label   dev_category   dev_network   loc_lat   loc_lng   val_calibrated   record_updated   geopoint   skip_record_flag   year   colspacer
datetime dev_chid val_raw val_description val_type dev_site dev_tag val_cal val_offset dev_error dev_type dev_label dev_category dev_network loc_lat loc_lng val_calibrated record_updated geopoint skip_record_flag year