area age species_number
0.7 young 12
2.2 young 10
2.4 young 10
2 young 47
2.2 young 37
2.4 young 46
2.5 young 42
2.7 young 32
3 young 26
2.8 young 82
2.9 young 24
3.3 young 43
3.4 young 36
3.6 young 70
4.6 young 18
5.1 young 25
5.3 young 80
5.5 young 31
5.6 young 71
5.4 young 150
5.4 young 91
5 young 50
4.9 young 47
4.9 young 59
4.4 young 120
4 young 88
4.3 young 209
3.9 young 42
3.9 young 84
1.8 old 73
2 old 76
2.3 old 67
2.7 old 78
2.5 old 96
1.9 old 175
2.6 old 133
2.6 old 103
2.8 old 113
2.9 old 104
3.6 old 87
4.2 old 127
3.2 old 182
3 old 179
4 old 201
4 old 245
4.2 old 174
4.6 old 230
4.8 old 324
4.9 old 428
5.1 old 407
5.5 old 285
5.9 old 184
5.9 old 531
5.7 old 635