The following graph shows how global temperatures have varied over the past 100 years. It displays temperatures based on how far they deviated from average. If a bar goes up from the zero axis, then the temperature that year was higher than average. If a bar goes down, then the temperature that year was lower than average

slightly below average approximately average slightly above average most above average

1936 1966 1977 2016

1936: slightly below average

1966: slightly above average
1977: slightly below average
2016: most above average