750	avg_yield1
550	avg_yield2
	avg_yield3
	avg_yield4

1000	high_yield1
600	high_yield2 
	high_yield3
	high_yield4 

500	low_yield1
500	low_yield2
	low_yield3
	low_yield4

1500	avg_residue1
1650	avg_residue2
	avg_residue3
	avg_residue4

8	users estimate of observed_wind_erosion
6	past WEQ_erosion_estimate