The table chart illustrates the percentage of male participants in senior development position in three companies from 1980 to 2010.
Overall, the significant changes of chart occurred at end of period. Throughout the period, the most noticeable change of participation percentage showed IBM company.
Looking at the details, the index of IBM between the 1980 and 1985 was just 2 percents. There were moderate increases to approximately 12 percent in 1990 and 26 percent in 1995. After a slight growth to over 30 percent it hit a peak of 62 percent in 2010.
When it comes to the Microsoft, the indication gradually climbed from 8 to 16 percent during the 1980 and 2000. In the last decade there was a dramatic rise by around 25 percents. Finaly, the male presents percentage in senior development position of Apple company displayed unexpected drops and falls, but in general it varied between 12 and 25 percents.
