1989 10 2 1200 16
1990 10 2 2400 20
1998 10 5 33600 20
2000 10 5 56000 32
2001 10 10 128000 32
2005 10 10 512000 32
2006 10 10 1024000 32
2007 50 25 8000000 32
2008 50 25 16000000 32