Table 4: Decline rates of SN 1990I. Data for events with two slopes at late times are also reported (see text for discussion).
Phase range
$\gamma_B$ $\gamma_V$ $\gamma_R$ $\gamma_I$

(days) mag (100 d)^-1 mag (100 d)^-1 mag (100 d)^-1 mag (100 d)^-1

[16:40]
6.2 5.6 4.78 -

[50:150]
1.53 1.92 1.77 1.7

[200:340]
1.2 2.7 2.6 2.6

The third to second phase decline slopes ratio:

$\gamma_{[200:340]}$ / $\gamma_{[50:150]}$ (90I)
0.79 1.4 1.467 1.53

$\gamma_{[150:350]}$ / $\gamma_{[45:150]}$ (93J)
1.47 0.82 0.62 0.75

$\gamma_{[310:490]}$ / $\gamma_{[40:330]}$ (98bw)
0.86 0.56 0.78 0.745

$\gamma_{[t \geq 312]}$ / $\gamma_{[t\leq 312 ]}$ (96N)
- $\sim$ 1.6 $\sim$ 1.4 -

**Table 4:** Decline rates of SN 1990I. Data for events with two slopes at late times are also reported (see text for discussion).
Phase range	$\gamma_B$	$\gamma_V$	$\gamma_R$	$\gamma_I$
(days)	mag (100 d)^-1	mag (100 d)^-1	mag (100 d)^-1	mag (100 d)^-1
[16:40]	6.2	5.6	4.78	-
[50:150]	1.53	1.92	1.77	1.7
[200:340]	1.2	2.7	2.6	2.6
The third to second phase decline slopes ratio:
$\gamma_{[200:340]}$ / $\gamma_{[50:150]}$ (90I)	0.79	1.4	1.467	1.53
$\gamma_{[150:350]}$ / $\gamma_{[45:150]}$ (93J)	1.47	0.82	0.62	0.75
$\gamma_{[310:490]}$ / $\gamma_{[40:330]}$ (98bw)	0.86	0.56	0.78	0.745
$\gamma_{[t \geq 312]}$ / $\gamma_{[t\leq 312 ]}$ (96N)	-	$\sim$ 1.6	$\sim$ 1.4	-

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