which network had the all-time top number of viewers?
abc
col : no. | air date | network | household\nrating | viewers\n(millions) row 1 : 18th | june 27, 1991 | cbs | 13.5 | 18.9 row 2 : 19th | june 23, 1992 | nbc | 15.3 | 20.2 row 3 : 20th | may 26, 1993 | abc | 16.4 | 22 row 4 : 21st | may 25, 1994 | abc | 14.1 | 18.9 row 5 : 22nd | may 19, 1995 | nbc | 10.2 | 13.7 row 6 : 23rd | may 22, 1996 | cbs | 11.4 | 15.1 row 7 : 24th | may 21, 1997 | abc | 11.8 | 15.9 row 8 : 25th | may 15, 1998 | nbc | 10.2 | 13 row 9 : 26th | may 21, 1999 | cbs | 10.4 | 14.2 row 10 : 27th | may 19, 2000 | abc | 9.1 | 13 row 11 : 28th | may 18, 2001 | nbc | 7.9 | 10.3 row 12 : 29th | may 17, 2002 | cbs | 6.9 | 10.1 row 13 : 30th | may 16, 2003 | abc | 6.3 | 8.6 row 14 : 31st | may 21, 2004 | nbc | 6 | 8.4 row 15 : 32nd | may 20, 2005 | cbs | 5.5 | 7.6 row 16 : 33rd | april 28, 2006 | abc | 4.5 | 6.1 row 17 : 34th | june 15, 2007 | cbs | 5.9 | 8.3 row 18 : 35th | june 20, 2008 | abc | 4 | 5.4 row 19 : 36th | august 30, 2009 | cw | 2 | 2.7 row 20 : 37th | june 27, 2010 | cbs | 3.8 | 5.6 row 21 : 38th | june 19, 2011 | cbs | 3.7 | 5.5 row 22 : 39th | june 23, 2012 | hln |  | 2 (5 broadcasts)
which network had the all-time top number of viewers?
No. Air date Network Household\nrating Viewers\n(millions)
18th June 27, 1991 CBS 13.5 18.9
19th June 23, 1992 NBC 15.3 20.2
20th May 26, 1993 ABC 16.4 22
21st May 25, 1994 ABC 14.1 18.9
22nd May 19, 1995 NBC 10.2 13.7
23rd May 22, 1996 CBS 11.4 15.1
24th May 21, 1997 ABC 11.8 15.9
25th May 15, 1998 NBC 10.2 13
26th May 21, 1999 CBS 10.4 14.2
27th May 19, 2000 ABC 9.1 13
28th May 18, 2001 NBC 7.9 10.3
29th May 17, 2002 CBS 6.9 10.1
30th May 16, 2003 ABC 6.3 8.6
31st May 21, 2004 NBC 6 8.4
32nd May 20, 2005 CBS 5.5 7.6
33rd April 28, 2006 ABC 4.5 6.1
34th June 15, 2007 CBS 5.9 8.3
35th June 20, 2008 ABC 4 5.4
36th August 30, 2009 CW 2 2.7
37th June 27, 2010 CBS 3.8 5.6
38th June 19, 2011 CBS 3.7 5.5
39th June 23, 2012 HLN 2 (5 broadcasts)
ABC