Table 5: Mean radial velocities (in ${\rm km~ s^{-1}}$ ) of the most numerous species, absorption and emission of Cr II, Fe II, and [Fe II] emission. The number of lines is given in parentheses.
1995 1999 2001

Cr II a $25.4\pm1.3$ (10) $25.4\pm1.4$ (11) $21.8\pm0.8$ (4)

Cr II e $23.6\pm1.3$ (11) $23.1\pm1.2$ (11) $18.6\pm2.0$ (4)

Fe II a $29.4\pm0.7$ (58) $28.2\pm0.6$ (59) $24.2\pm0.6$ (35)

Fe II e $25.8\pm0.5$ (69) $24.5\pm0.4$ (64) $21.6\pm0.5$ (47)

[Fe II] $21.5\pm0.5$ (85) $22.5\pm0.4$ (77) $21.4\pm0.3$ (32)

**Table 5:** Mean radial velocities (in ${\rm km~ s^{-1}}$ ) of the most numerous species, absorption and emission of Cr II, Fe II, and [Fe II] emission. The number of lines is given in parentheses.
	1995	1999	2001
Cr II a	$25.4\pm1.3$ (10)	$25.4\pm1.4$ (11)	$21.8\pm0.8$ (4)
Cr II e	$23.6\pm1.3$ (11)	$23.1\pm1.2$ (11)	$18.6\pm2.0$ (4)
Fe II a	$29.4\pm0.7$ (58)	$28.2\pm0.6$ (59)	$24.2\pm0.6$ (35)
Fe II e	$25.8\pm0.5$ (69)	$24.5\pm0.4$ (64)	$21.6\pm0.5$ (47)
[Fe II]	$21.5\pm0.5$ (85)	$22.5\pm0.4$ (77)	$21.4\pm0.3$ (32)

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