For load tests, the total response time of a given page or request is meaningless. It makes more sense to look at the mode response time, vs the median response time vs the average response time.
In your graph, the mode response time is 37800 ms (5 responses took this length of time).
The median response time (the one that is halfway through the list) is 37700 ms. (there were 27 responses, so response #14 is the median).
The average response time is the sum of all response times divided by the number of responses.
These numbers tell you that a typical response to this call takes over 35 seconds, which is a rather poor response.
The total time taken isn't relevant beside that: total time really only matters in the context of an end-to-end cycle (that is, it takes a certain amount of time to perform function X).