Lease prices are always rising, just like land, food, gas, cars, etc...
Johnnie
Just for fun, I punched it into an inflation calculator. For reference, we leased a 350 acre tract of land in Anson county in 1991, before the lease price explosion IMO, for $3/acre. I compared that to a gallon of gas and a dozen eggs to see what the cost should be today with inflation adjustment.
Gas: $1.14 (1991) should be $2.10 (2018) Actual cost today: $1.97 or -6%
Eggs: $1.01 (1991) should be $1.86 (2018) Actual cost today: $0.98 or -46%
Lease price $3/acre (1991) should be $5.53 (2018) Actual cost for the same land: $17/acre (+207%) in 2014. Probably $20/ac. by now.