stock total return performance the following graph compares our total return to stockholders with the returns of the standard & poor 2019s composite 500 index ( 201cs&p 500 201d ) and the dow jones us select health care providers index ( 201cpeer group 201d ) for the five years ended december 31 , 2017 .the graph assumes an investment of $ 100 in each of our common stock , the s&p 500 , and the peer group on december 31 , 2012 , and that dividends were reinvested when paid. .            | 12/31/2012 | 12/31/2013 | 12/31/2014 | 12/31/2015 | 12/31/2016 | 12/31/2017
hum        | $ 100      | $ 152      | $ 214      | $ 267      | $ 307      | $ 377     
s&p 500    | $ 100      | $ 132      | $ 150      | $ 153      | $ 171      | $ 208     
peer group | $ 100      | $ 137      | $ 175      | $ 186      | $ 188      | $ 238      the stock price performance included in this graph is not necessarily indicative of future stock price performance. .
Question: what was the stock total return performance for hum in 2014?
Steps: Ask for number 214
Answer: 214.0
Question: and what was it in 2013?
Steps: Ask for number 152
Answer: 152.0
Question: by what amount, then, did that performance increase over the year?
Steps: subtract(214, 152)
Answer: 62.0
Question: and in that same year of 2014, what was the highest stock total return performance between all stocks?
Steps: Ask for number 214
Answer: 214.0
Question: by how much did this performance change since 2012?

Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.
stock total return performance the following graph compares our total return to stockholders with the returns of the standard & poor 2019s composite 500 index ( 201cs&p 500 201d ) and the dow jones us select health care providers index ( 201cpeer group 201d ) for the five years ended december 31 , 2017 .the graph assumes an investment of $ 100 in each of our common stock , the s&p 500 , and the peer group on december 31 , 2012 , and that dividends were reinvested when paid. .            | 12/31/2012 | 12/31/2013 | 12/31/2014 | 12/31/2015 | 12/31/2016 | 12/31/2017
hum        | $ 100      | $ 152      | $ 214      | $ 267      | $ 307      | $ 377     
s&p 500    | $ 100      | $ 132      | $ 150      | $ 153      | $ 171      | $ 208     
peer group | $ 100      | $ 137      | $ 175      | $ 186      | $ 188      | $ 238      the stock price performance included in this graph is not necessarily indicative of future stock price performance. .
Question: what was the stock total return performance for hum in 2014?
Steps: Ask for number 214
Answer: 214.0
Question: and what was it in 2013?
Steps: Ask for number 152
Answer: 152.0
Question: by what amount, then, did that performance increase over the year?
Steps: subtract(214, 152)
Answer: 62.0
Question: and in that same year of 2014, what was the highest stock total return performance between all stocks?
Steps: Ask for number 214
Answer: 214.0
Question: by how much did this performance change since 2012?
