The March 18th numbers are interesting. There are three obvious groups of numbers there:
Group 1) The 80x numbers that have appeared straight - 800 801 802 805 806.
Group 2) The 90x numbers that have appeared straight - 902 903 907.
Group 3) The x41 numbers that have appeared straight - 041 141 241.
Only 42 numbers have been drawn on 3/18 and the three above straight patterns account for 11 of them.
There are 11 other groups where pairs have repeated twice.
The 23x numbers that have appeared straight - 234 235
The 43x numbers that have appeared straight - 431 437
The 68x numbers that have appeared straight - 685 686
The x02 numbers that have appeared straight - 802 902
The x03 numbers that have appeared straight - 403 903
The x16 numbers that have appeared straight - 016 516
The x27 numbers that have appeared straight - 027 127
The x31 numbers that have appeared straight - 131 431
The x50 numbers that have appeared straight - 250 950
The x85 numbers that have appeared straight - 685 885
The x86 numbers that have appeared straight - 586 686
There are 22 of these straight numbers. If you add these to the 11 numbers from above, they account for 33 of the 42 numbers that have been drawn on 3/18 and that is pretty unusual.
Here is the raw data:
03/18/1991; Night: 6,8,5
03/18/1992; Night: 8,8,5
03/18/1993; Night: 5,8,6
03/18/1994; Night: 6,6,8
03/18/1995; Day: 0,4,5; Night: 2,3,5
03/18/1996; Day: 0,2,7; Night: 7,8,0
03/18/1997; Day: 7,3,9; Night: 9,0,7
03/18/1998; Day: 8,0,2; Night: 2,3,4
03/18/1999; Day: 7,7,5; Night: 6,0,4
03/18/2000; Day: 5,1,6; Night: 4,5,5
03/18/2002; Day: 8,0,5; Night: 7,9,2
03/18/2003; Day: 0,1,6; Night: 8,7,7
03/18/2004; Day: 4,3,1; Night: 0,4,1
03/18/2005; Day: 0,8,3; Night: 8,0,0
03/18/2006; Day: 1,3,1; Night: 9,0,3
03/18/2007; Day: 6,7,4; Night: 2,5,0
03/18/2008; Day: 3,2,5; Night: 6,8,6
03/18/2009; Day: 9,5,0; Night: 4,0,3
03/18/2010; Day: 8,0,6; Night: 8,0,1
03/18/2011; Day: 4,3,7; Night: 7,9,0
03/18/2012; Day: 1,4,1; Night: 9,0,2
03/18/2013; Day: 2,4,1; Night: 9,2,8
03/18/2014; Day: 1,2,7; Night: 2,1,9