when did pfizer stock split in 2006

Pfizer (PFE) returned 13.7% in 2006.

DATE OPEN HIGH LOW CLOSE VOLUME
December 29 2006
$11.16
$11.20
$11.05
$11.08
29,252,821
December 28 2006
$11.13
$11.21
$11.06
$11.16
25,309,702
December 27 2006
$11.10
$11.22
$11.05
$11.19
26,013,774
December 26 2006
$11.04
$11.12
$11.04
$11.10
18,787,128
December 22 2006
$11.13
$11.18
$11.09
$11.11
21,516,567
December 21 2006
$11.23
$11.27
$11.13
$11.16
35,491,553
December 20 2006
$11.19
$11.36
$11.18
$11.22
46,913,645
December 19 2006
$11.06
$11.23
$11.02
$11.21
51,323,265
December 18 2006
$10.98
$11.10
$10.94
$11.05
40,356,079
December 15 2006
$10.94
$11.04
$10.93
$10.97
52,561,715
December 14 2006
$10.91
$10.98
$10.87
$10.94
38,905,880
December 13 2006
$10.79
$10.89
$10.78
$10.86
42,641,994
December 12 2006
$10.72
$10.80
$10.68
$10.77
44,526,546
December 11 2006
$10.81
$10.95
$10.68
$10.76
59,147,318
December 08 2006
$10.64
$10.78
$10.61
$10.77
46,065,492
December 07 2006
$10.69
$10.69
$10.58
$10.64
53,632,685
December 06 2006
$10.65
$10.69
$10.55
$10.61
51,820,753
December 05 2006
$10.69
$10.75
$10.52
$10.62
124,992,068
December 04 2006
$10.12
$11.90
$10.06
$10.65
304,826,813
December 01 2006
$11.81
$11.92
$11.77
$11.92
42,347,190
November 30 2006
$11.72
$11.93
$11.71
$11.76
62,557,324
November 29 2006
$11.68
$11.75
$11.51
$11.58
45,034,680
November 28 2006
$11.55
$11.59
$11.48
$11.57
33,198,787
November 27 2006
$11.51
$11.63
$11.45
$11.54
41,113,800
November 24 2006
$11.51
$11.57
$11.49
$11.51
11,827,883