1986   $315 million, Gates owns 45% of Microsoft stock
1987   $1.5 billion
1990   $2.5 billion  Windows 3.0 is released
1995   $14.8 billion Windows 95 is released
1997   $39.8 billion
1999   $85 billion
2000   $63 billion
2008   $58 billion
2013   $72 billion
2014   $76 billion
2015   $79.2 billion
2016   $82.9 billion, Gates owns  2.6% of Microsoft stock