Table:
calendar year
vital statistics
t1ff estimates
t1ff / vital statistics ratio

number
ratio

1991
402,533
412,577
1.02

1992
398,643
402,927
1.01

1993
388,394
367,551
0.95

1994
385,114
362,704
0.94

1995
378,016
354,549
0.94

1996
366,200
342,593
0.94

1997
348,598
323,335
0.93

1998
342,418
312,984
0.91

1999
337,249
304,402
0.90

2000
327,882
297,422
0.91

2001
333,744
298,312
0.89

2002
328,802
291,549
0.89

2003
335,202
292,372
0.87

2004
337,072
306,977
0.91

2005
342,176
330,495
0.97

2006
354,617
347,806
0.98

2007
367,864
356,754
0.97

2008
377,886
364,743
0.97

2009
380,863
367,030
0.96

2010
377,213
366,916
0.97

2011
377,636
368,168
0.97

2012
381,869
373,841
0.98

2013
380,323
372,333
0.98

Statement: in 1991, the number of newborns in the t1ff was about 2% more than that in the vital statistics.
Question: what is the percentage that the number of newborns in the t1ff more than that in the vital statistics in 1991?
Answer: [0.02]