Ratings
Seasonal rankings (based on average total viewers per episode) of Law & Order on NBC.
Note: Each U.S. network television season starts in late September and ends in late May, which coincides with the completion of May sweeps. Season 18 started in January and was held back as a mid-season replacement when NBC announced their 2007–08 schedule in May 2007. The 20th season premiere was on Friday, September 25, 2009 at 8:00 pm (ET) and 7:00 pm (CT) on NBC.
| Season | Premiere | Finale | Episodes | Timeslot | Rank | Viewers (in millions) |
|
|---|---|---|---|---|---|---|---|
| 1 | 1990–91 | September 13, 1990 | June 9, 1991 | 22 | Tuesday 10:00 pm | #46 | 12.0 |
| 2 | 1991–92 | September 17, 1991 | May 14, 1992 | 22 | #43 | 12.3 | |
| 3 | 1992–93 | September 23, 1992 | May 19, 1993 | 22 | Wednesday 10:00 pm | #49 | 10.5 |
| 4 | 1993–94 | September 15, 1993 | May 25, 1994 | 22 | #38 | 11.9 | |
| 5 | 1994–95 | September 21, 1994 | May 24, 1995 | 23 | #27 | 11.6 | |
| 6 | 1995–96 | September 20, 1995 | May 22, 1996 | 23 | #24 | 10.9 | |
| 7 | 1996–97 | September 18, 1996 | May 21, 1997 | 23 | #27 | 10.5 | |
| 8 | 1997–98 | September 24, 1997 | May 20, 1998 | 24 | #24 | 14.1 | |
| 9 | 1998–99 | September 23, 1998 | May 26, 1999 | 24 | #20 | 13.8 | |
| 10 | 1999–00 | September 22, 1999 | May 24, 2000 | 24 | #13 | 16.3 | |
| 11 | 2000–01 | October 18, 2000 | May 23, 2001 | 24 | #11 | 17.7 | |
| 12 | 2001–02 | September 26, 2001 | May 22, 2002 | 24 | #7 | 18.7 | |
| 13 | 2002–03 | October 2, 2002 | May 21, 2003 | 24 | #10 | 17.3 | |
| 14 | 2003–04 | September 24, 2003 | May 19, 2004 | 24 | #14 | 15.9 | |
| 15 | 2004–05 | September 22, 2004 | May 18, 2005 | 24 | #25 | 13.0 | |
| 16 | 2005–06 | September 21, 2005 | May 17, 2006 | 22 | #35 | 11.2 | |
| 17 | 2006–07 | September 22, 2006 | May 18, 2007 | 22 | Friday 10:00 pm | #54 | 9.4 |
| 18 | 2007–08 | January 2, 2008 | May 21, 2008 | 18 | Wednesday 10:00 pm | #38 | 10.7 |
| 19 | 2008–09 | November 5, 2008 | June 3, 2009 | 22 | #62 | 8.2 | |
| 20 | 2009–10 | September 25, 2009 | May 24, 2010 | 23 | Friday 8:00 pm Monday 10:00 pm |
#60 | 7.2 |
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