The competition for ratings on Monday nights is getting tougher and Castle’s ratings were already on the decline last season. Will it survive to see a sixth season or will it be cancelled after more than 100 episodes? Stay tuned.

The fifth season of Castle typically airs Monday nights at 10pm on the ABC network. The cast includes Nathan Fillion, Stana Katic, Jon Huertas, Molly Quinn, Ruben Santiago-Hudson, Seamus Dever, Susan Sullivan, and Tamala Jones.

Below are the TV show’s ratings for the 2012-13 season, the best way to tell if Castle is going to be cancelled or renewed for a sixth season.

These figures will be updated as the weeks progress so be sure to bookmark and return to this page:

Final season averages: 2.0 rating in the 18-49 demographic with 10.18 million total viewers.

Episode 05-24: Monday, 05/13/13
2.1 in the demo (+5% change) with 11.16 million (+3% change).
Season averages: 2.04 in the demo with 10.18 million.

UPDATE: ABC has renewed this show for a sixth season for 2013-14.

Episode 05-23: Monday, 05/06/13
2.0 in the demo (0% change) with 10.84 million (+3% change).
Season averages: 2.04 in the demo with 10.18 million.

Episode 05-22: Monday, 04/29/13
2.0 in the demo (-13% change) with 10.53 million (-11% change).
Season averages: 2.04 in the demo with 10.15 million.

Episode 05-21: Monday, 04/22/13
2.3 in the demo (+15% change) with 11.76 million (+16% change).
Season averages: 2.04 in the demo with 10.13 million.

Episode 05-20: Monday, 04/15/13
2.0 in the demo (-9% change) with 10.18 million (-14% change).
Season averages: 2.03 in the demo with 10.05 million.

Episode 05-19: Monday, 04/01/13
2.2 in the demo (+5% change) with 11.79 million (+12% change).
Season averages: 2.03 in the demo with 10.05 million.

Episode 05-18: Monday, 03/25/13
2.1 in the demo (-5% change) with 10.57 million (-6% change).
Season averages: 2.02 in the demo with 9.95 million.

Episode 05-17: Monday, 03/18/13
2.2 in the demo (-4% change) with 11.26 million (+5% change).
Season averages: 2.02 in the demo with 9.91 million.

Episode 05-16: Monday, 02/25/13
2.3 in the demo (0% change) with 10.77 million (+9% change).
Season averages: 2.01 in the demo with 9.83 million.

Episode 05-15: Monday, 02/18/13
2.3 in the demo (+15% change) with 9.85 million (+10% change).
Season averages: 1.99 in the demo with 9.76 million.

Episode 05-14: Monday, 02/11/13
2.0 in the demo (+11% change) with 8.97 million (+1% change).
Season averages: 1.96 in the demo with 9.76 million.

Episode 05-13: Monday, 02/04/13
1.8 in the demo (-10% change) with 8.89 million (+1% change).
Season averages: 1.96 in the demo with 9.82 million.

Episode 05-12: Monday, 01/21/13
2.0 in the demo (+5% change) with 8.82 million (-4% change).
Season averages: 1.98 in the demo with 9.90 million.

Episode 05-11: Monday, 01/14/13
1.9 in the demo (0% change) with 9.14 million (+6% change).
Season averages: 1.97 in the demo with 9.99 million.

Episode 05-10: Monday, 01/07/13
1.9 in the demo (+12% change) with 8.66 million (+2% change).
Season averages: 1.98 in the demo with 10.08 million.

Episode 05-09: Monday, 12/03/12
1.7 in the demo (-15% change) with 8.50 million (-18% change).
Season averages: 1.99 in the demo with 10.24 million.

Episode 05-08: Monday, 11/19/12
2.0 in the demo (+5% change) with 10.36 million (+3% change).
Season averages: 2.02 in the demo with 10.46 million.

Episode 05-07: Monday, 11/12/12
1.9 in the demo (0% change) with 10.07 million (+1% change).
Season averages: 2.03 in the demo with 10.47 million.

Episode 05-06: Monday, 11/05/12
1.9 in the demo (-14% change) with 10.02 million (-8% change).
Season averages: 2.05 in the demo with 10.54 million.

Episode 05-05: Monday, 10/29/12
2.2 in the demo (+10% change) with 10.84 million (-1% change).
Season averages: 2.08 in the demo with 10.64 million.

Episode 05-04: Monday, 10/15/12
2.0 in the demo (-9% change) with 10.94 million (+3% change).
Season averages: 2.05 in the demo with 10.59 million.

Episode 05-03: Monday, 10/08/12
2.2 in the demo (+16% change) with 10.61 million (+3% change).
Season averages: 2.07 in the demo with 10.47 million.

Episode 05-02: Monday, 10/01/12
1.9 in the demo (-10% change) with 10.35 million (-1% change).
Season averages: 2.00 in the demo with 10.40 million.

Episode 05-01: Monday, 09/24/12
2.1 rating in the 18-49 demographic with 10.45 million total viewers.
Season averages: 2.10 in the demo with 10.45 million.

Year-to-year, the Castle debut was down by 34% in the demo (vs a 3.2 rating) and down by 21% in viewers (vs 13.28 million). It was the lowest demo since April 2012 and the lowest viewership since February 2012.

Reference point: The 2011-12 season averaged a 2.3 rating in the 18-49 demographic and 10.71 million viewers.

Note: These ratings are collected by the Nielsen company and are the final national numbers. These are different from the fast affiliate numbers which are just estimates of the actual ratings and are reported on by most other outlets. The final nationals are typically released within 24 hours of the programming or, in the case of weekends and holidays, a couple days later.

What do you think? Do you still like the Castle TV series? Do you think it should be cancelled or renewed for a sixth season?