Question about 'chow test'!

[lethe_123]

I model for the data series with "Y C Y AR(1)", than conduct the chow test.now here's the output. but I don't understand it. can anyone tell me what's the meaning of them and is there really a break at the tested date?

Thanks in advance!

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Chow Breakpoint Test: 6/26/1996
Null Hypothesis: No breaks at specified breakpoints

Equation Sample: 9/02/1993 3/01/2010

F-statistic -1432.333 Prob. F(3,4297) NA