Nice try.Only a totally dishonest idiot will look at this chart and claim it shows a flat horizontal line.
I didn't say it showed a "flat, horizontal line." I said it shows that temperatures have been stagnant in the 21st century.
Since you don't like using 1998, let's look at the data from 2005 to 2014. Even after the data were "adjusted," the graph shows a change of only 0.05 degrees Celsius, which falls within the margin of error. Despite the amplification of small temperature changes on the left axis, the graph shows temperatures have been stagnant in the 21st century.
Indeed, more reliable data sets such as the satellite readings (which aren't being adjusted to make Obama happy) show no warming at all. Up to May of this year, NASA's chart also showed 2015 was no warmer than 2010.