Maersk Air
Fleet
Table:
Maersk Air aircraft

Aircraft

Qty.

Intr.

Ret.

Ref.

Hawker Siddeley HS 125

3
1967
1985
[90]

de Havilland Heron

2
1969
1970
[5]

Hawker Siddeley HS 748

5
1970
1981
[5][17]

Fokker F27-100 Friendship

10
1969
1996
[17][34]

Boeing 720B

5
1973
1981
[91]

Bell 212

5
1975
1993
[24]

Boeing 737-200 Advanced

14
1976
1990
[17]

de Havilland Canada DHC-7 Dash 7-102

5
1981
1989
[17]

Eurocopter AS332 Super Puma

5
1983
1999
[24]

Boeing 737-300

22
1985
1998
[92]

Eurocopter AS365 Dauphin

2
1983
1999

Fokker 50

9
1988
2000
[17][93]

Boeing 737-400

3
1993
1996
[92]

Boeing 737-500

24
1990
2005
[92]

Bombardier Challenger 604

2
1997
2005
[81][82]

Boeing 737-700

15
1998
2005
[94]

Bombardier CRJ-200

11
1998
2004
[95]

Taking into account the tabular data covering 'Maersk Air' in the 'Fleet' section, draft a brief sentence that explains what the highlighted cells show and format it within the following JSON object {"answer": "YOUR ANSWER"}.