25	avg_yield1
60	avg_yield2
900	avg_yield3
-99	avg_yield4

40	high_yield1
85	high_yield2 
1700	high_yield3
-99	high_yield4 

20	low_yield1
40	low_yield2
500	low_yield3
-99	low_yield4

2550	avg_residue1
3360	avg_residue2
2000	avg_residue3
-99	avg_residue4

33	users estimate of observed_wind_erosion
26	past WEQ_erosion_estimate