Below is a link to a study I found on kdnuggets.com. This is a useful website if you are interested in data science. The study is from October, 2016 so is fairly current. It is based on data from indeed.com as my earlier post was. It shows once again that Python, Java and R are the most popular programming languages for data science. Keep in mind , however, that R is a domain specific language for statistical computing. Unfortunately this study did not include commercial software, only open source. Thus SAS, etc. are not included.
KDNuggets - most popular languages for data science