Number pattern: find the step (difference) between consecutive terms.

Pattern	=	?, ?, 1.95, 1.90, 1.85, 1.80
Find the difference: 1.90 - 1.95 = -0.05, 1.85 - 1.90 = -0.05. The pattern subtracts 0.05 each step.
To find earlier terms, add 0.05 going left.
Before 1.95	=	1.95 + 0.05 = 2.00
Before 2.00	=	2.00 + 0.05 = 2.05
Check: 2.00 - 0.05 = 1.95. Matches.