The column headers are:

Year
Description: fishery season year
Unit:
Type: discrete
Range: 1997 to 2022
Note:

Number_of_forms_issued
Description: number of forms issued
Unit:
Type: continuous
Range: 1856 to 2163
Note:

Form_returns_data
Description: number of forms returned with catch or net effort data
Unit:
Type: continuous
Range: 865 to 1081
Note:

Form_returns_nil
Description: number of forms returned with no catch or net effort data
Unit:
Type: continuous
Range: 677 to 1144
Note:

Form_returns_data and nil
Description: total number of forms returned
Unit:
Type: continuous
Range: 1758 to 2028
Note: forms returned include those with catches and those with no catches

Return_rate_%
Description: forms returned as percentage of forms issued
Unit: %
Type: continuous
Range: 91 to 96
Note: forms returned include those with catches and those with no catches