lab4

year,month,time,passangers
1999,1,1,446.1
1999,2,2,436.4
1999,3,3,412.6
1999,4,4,393.6
1999,5,5,379.2
1999,6,6,383.4
1999,7,7,394.6
1999,8,8,401.2
1999,9,9,414.4
1999,10,10,428.1
1999,11,11,452
1999,12,12,474.3
2000,1,13,481.5
2000,2,14,467.8
2000,3,15,441.9
2000,4,16,424.2
2000,5,17,414
2000,6,18,417.1
2000,7,19,431.5
2000,8,20,440.5
2000,9,21,459.8
2000,10,22,475.2
2000,11,23,503.7
2000,12,24,528.3
2001,1,25,538.1
2001,2,26,533.7
2001,3,27,515.9
2001,4,28,495.8
2001,5,29,491.4
2001,6,30,496.6
2001,7,31,508.4
2001,8,32,522.9
2001,9,33,539.3
2001,10,34,563.2
2001,11,35,597.8
2001,12,36,624.4
2002,1,37,634.9
2002,2,38,635.4
2002,3,39,617.5
2002,4,40,611.3
2002,5,41,612.2
2002,6,42,628.3
2002,7,43,644.3
2002,8,44,659.4
2002,9,45,678.3
2002,10,46,704
2002,11,47,742.9
2002,12,48,771.9
2003,1,49,790
2003,2,50,792.7
2003,3,51,784.3
2003,4,52,777.7
2003,5,53,780.8
2003,6,54,793.9
2003,7,55,821.2
2003,8,56,841.7
2003,9,57,872.6
2003,10,58,903.6
2003,11,59,943.5
2003,12,60,989.8